From smi_south_central at listsmart.osl.state.or.us Sun May 1 14:23:54 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sun, 1 May 2011 14:23:54 -0700 Subject: SMI South Central (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Sunday, May 1, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 MONDAY A fairly active cold front reaches the coastline early Monday morning slowly spreading rain eastward across Oregon. Models differ on timing of onset of precipitation but generally agree that there will be light rain over the entire area by late afternoon. Mixing heights should be at 5000 feet or better with south-southwesterly transport winds for good smoke dispersal conditions. EXTENDED OUTLOOK (TUESDAY - THURSDAY) The upper trough associated with Monday's front moves east Tuesday and higher pressure builds offshore. Look for dry weather and generally northwesterly transport winds. With afternoon mixing heights topping out above 5000 feet smoke dispersal conditions should be good. The upper ridge axis moves directly over western Oregon Wednesday morning. This will cause some stabilization of the atmosphere but mixing heights should still max out around 4000 feet for good smoke dispersal conditions. Transport winds will be generally northwesterly. By Thursday a weak upper trough moves over the region as the upper ridge moves east. Cooler air aloft ensures high maximum mixing heights for good smoke dispersal conditions. Transport winds will be generally west-southwest to west-northwest. 2. DISPERSION MONDAY Mixing height 4100 - 5000 ft during the morning. Mixing height rises to above 5000 ft during the afternoon then lowers to 4000 - 5000 ft during the evening. Transport wind S to SW at 21 - 37 mph during the morning. Transport decreases to S to SW at 15 - 29 mph during the afternoon then shifts to W to NW and decreases to 12 - 24 mph during the evening. Surface wind SSW to SW at 14 - 28 mph during the morning. Surface wind shifts to W to NW and decreases to 12 - 22 mph during the afternoon then decreases to W to NW at 9 - 15 mph during the evening. OUTLOOK: TUESDAY Mixing height below 1000 ft early rising to 3600 - 4600 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable during the morning becoming NW to N at 6 - 12 mph during the afternoon. Surface wind light and variable during the morning becoming NNW to NNE at 6 - 12 mph during the afternoon. WEDNESDAY Mixing height below 1000 ft early rising to 2500 - 3500 ft by late morning rising to 3600 - 4600 ft during the afternoon. Transport wind ENE to ESE at 5 - 9 mph during the morning becoming NW to N at 4 - 8 mph during the afternoon. Surface wind light and variable during the morning becoming W to NW at 4 - 8 mph during the afternoon. THURSDAY Mixing height below 1000 ft early rising to 3100 - 4100 ft by late morning rising to 4500 - 5000 ft during the afternoon. Transport wind light and variable during the morning becoming W to NW at 4 - 8 mph during the afternoon. Surface wind light and variable during the morning becoming W to NW at 4 - 8 mph during the afternoon. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Monday, May 2, 2011. ================================================================== Avoid ignitions within 10 miles to the S through NW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles in all directions of SSRAs. Care needed in selecting units as smoke will likely fumigate along the ground in wind prone areas. Watch for shifting transport winds. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Mon May 2 13:56:33 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 2 May 2011 13:56:33 -0700 Subject: SMI South Central (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Monday, May 2, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 TUESDAY The upper trough that brought rain to portions of Oregon on Monday moves east on Tuesday while an upper level ridge builds to the west. The air aloft will still be cool enough to allow for high afternoon mixing heights and thus good smoke dispersal conditions. Transport winds will be generally northwesterly. OUTLOOK (WEDNESDAY - FRIDAY) -- Dry Weather through the Outlook Period -- The upper ridge begins the day Wednesday along the coastline but by evening has drifted eastward to over eastern Washington and Oregon. Expect light and shifting transport winds, mostly light southeasterly early then light west southwesterly late. Maximum mixing heights will remain high for good smoke dispersal conditions. The upper ridge has shifted to over western Montana by Thursday morning and a weak upper trough moves into Washington. An associated cold front clips northwest Oregon but for this region expect just middle and high clouds. Temperatures will range 4-6 degrees above average. The trough does support some instability for good afternoon mixing heights and good smoke dispersal conditions. Transport winds will be mostly westerly. Friday an upper low moves down the southeast Alaska/British Columbia coastline. Mid-level warming with the southwest flow ahead of the low suppresses mixing heights somewhat but smoke dispersal conditions should remain fair to good for most of the region. Surface temperatures drop to near or slightly below average and transport winds will be mostly southwesterly. 2. DISPERSION TUESDAY Mixing height 2600 - 3600 ft during the morning. Mixing height rises above 5000 ft during the afternoon then lowers below 1000 ft during the evening. Transport wind light and variable and controlled by local terrain during the morning. Transport wind increases to NW to N at 8 - 12 mph during the afternoon and evening. Surface wind N to NE at 4 - 8 mph during the morning. Surface wind increases to NNW to NNE at 8 - 12 mph during the afternoon then decreases to N to NE at 4 - 8 mph during the evening. OUTLOOK: WEDNESDAY Mixing height below 1000 ft early rising to 2400 - 3400 ft by late morning rising above 5000 ft during the afternoon. Transport wind ENE to ESE at 5 - 9 mph during the morning becoming W to NW at 4 - 8 mph during the afternoon. Surface wind light and variable during the morning becoming W to NW at 4 - 8 mph during the afternoon. THURSDAY Mixing height below 1000 ft early rising to 2900 - 3900 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to W at 4 - 8 mph. Surface wind light and variable. FRIDAY Mixing height below 1000 ft early rising to 2500 - 3500 ft by late morning rising to 3500 - 4500 ft during the afternoon. Transport wind SW to W at 4 - 8 mph. Surface wind light and variable. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Tuesday, May 3, 2011. ================================================================== Avoid ignitions within 15 miles to the NW through NNE of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles to the NW through ESE in or near drainages leading to SSRAs. Recommend against burning units that will smolder significantly overnight. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Tue May 3 14:10:52 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 3 May 2011 14:10:52 -0700 Subject: SMI South Central (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Tuesday, May 3, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 WEDNESDAY An upper level ridge drifts eastward across the region on Wednesday. The axis of the ridge is near the coast early in the morning but by evening lies along a line from eastern Washington to eastern Oregon. Expect dry weather and high afternoon mixing heights for good smoke dispersal conditions most areas. Afternoon mixing heights should climb to or above 5000 feet and transport winds will be mostly southeasterly. OUTLOOK (THURSDAY - SATURDAY) The upper ridge shifts to the northern plains on Thursday as a weak upper trough moves across the Pacific Northwest. Moisture is limited, thus expect just mid and high clouds. Temperatures will climb to 7 to 10 degrees above average. Transport winds start out southerly but become northwesterly during the day. High maximum mixing heights should provide good smoke dispersal conditions. A generally zonal or west to east flow aloft prevails on Friday. Low level transport winds will be generally west-southwesterly. Smoke dispersal conditions will be fair as maximum mixing heights will be a bit lower than on Thursday. Little change in the broad upper scale flow for Saturday is likely, but a weak impulse in the flow could bring an increase in mid and high clouds to the region. Temperatures dip to around 3 to 6 degrees below average for the time of year. However maximum mixing heights are again likely to exceed 5000 feet and with a good west-southwest transport wind smoke dispersal conditions should be good. 2. DISPERSION WEDNESDAY Mixing height 2600 - 3600 ft during the morning. Mixing height rises above 5000 ft during the afternoon then lowers below 1000 ft during the evening. Transport wind E to SE at 8 - 12 mph during the morning. Transport wind shifts to SE to SSW at 6 - 10 mph during the afternoon and evening. Surface wind E to SE at 6 - 12 mph during the morning. Surface wind shifts to SE to S at 6 - 10 mph during the afternoon then becomes light and variable and controlled by local terrain during the evening. OUTLOOK: THURSDAY Mixing height below 1000 ft early rising above 5000 ft by late morning and through the afternoon. Transport wind SW to WSW at 10 - 16 mph during the morning becoming WNW to NW at 13 - 25 mph during the afternoon. Surface wind SSW to WSW at 8 - 12 mph during the morning becoming W to WNW at 10 - 22 mph during the afternoon. FRIDAY Mixing height below 1000 ft early rising to 2500 - 3500 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to WNW at 4 - 8 mph. Surface wind light and variable during the morning becoming WSW to NW at 4 - 8 mph during the afternoon. SATURDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to W at 4 - 8 mph. Surface wind light and variable. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Wednesday, May 4, 2011. ============================================================== Avoid ignitions within 15 miles to the E through SSW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles to the E through SW in or near drainages leading to SSRAs. Watch for shifting transport winds. Recommend against burning units that will smolder significantly overnight. Complete ignitions by 4:00pm. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Wed May 4 14:32:18 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Wed, 4 May 2011 14:32:18 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Wednesday, May 4, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 THURSDAY An upper-level ridge is forecast to flatten and shift eastward, to over the northern Rockies, as a weak upper-level trough moves across the Pacific Northwest. Moisture is limited, so expect only some increase in cloudiness but no precipitation. The surface thermal trough will also weaken and shift east of the region. Temperatures will start out warmer than on Wednesday but likely top out at about the same level, as increasing westerly transport winds usher cooler marine air into the region. Cooling aloft and daytime heating will combine for good afternoon mixing. OUTLOOK (FRIDAY-SUNDAY) A westerly flow aloft is forecast for Friday, with the region between storm systems. Low level transport winds will be generally west-southwesterly. Afternoon smoke dispersal conditions will continue to be good. A strengthening westerly jet stream will direct another cold front across the Pacific Northwest Friday night, with a cool upper-level trough moving onshore Saturday. Expect mostly cloudy skies Saturday with a chance of showers by the afternoon. Temperatures will drop back to near or slightly below normal. With further cooling aloft, maximum mixing heights are again likely to exceed 5000 feet and with brisk west-southwesterly transport winds. By Sunday, another unseasonably cold upper-level trough will make camp over the Pacific Northwest. Rain and snow showers will be widespread with precipitation totals over .10 inches common. The snow level will drop to 4-5000 feet late. Cold air aloft should make for good mixing with brisk west-northwesterly transport winds. 2. DISPERSION THURSDAY Mixing height below 500 ft early rising to 3500 - 4500 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 1500 - 2500 ft during the evening. Transport wind WSW to WNW at 10 - 20 mph during the morning. Transport wind increases to WSW to WNW at 15 - 25 mph during the afternoon and evening. Surface wind WSW to WNW at 8 - 14 mph during the morning. Surface wind increases to WSW to WNW at 10 - 20 mph during the afternoon then decreases to W to NW at 8 - 12 mph during the evening. OUTLOOK: FRIDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to WNW at 6 - 10 mph during the morning becoming WSW to WNW at 12 - 24 mph during the afternoon. Surface wind light and variable during the morning becoming WSW to WNW at 8 - 12 mph during the afternoon. SATURDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to W at 8 - 12 mph during the morning becoming WSW to WNW at 10 - 22 mph during the afternoon. Surface wind SW to WNW at 4 - 8 mph. SUNDAY Mixing height 2800 - 3800 ft during the morning rising above 5000 ft during the afternoon. Transport wind W to WNW at 10 - 22 mph. Surface wind WSW to NW at 6 - 10 mph during the morning becoming WNW to NNW at 10 - 20 mph during the afternoon. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Thursday, May 5, 2011. ================================================================== Avoid ignitions within 12 miles to the WSW through NW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the WSW through NW in or near drainages leading to SSRAs. Complete ignitions by 6 p.m. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Thu May 5 14:26:44 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 5 May 2011 14:26:44 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Thursday, May 5, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 FRIDAY A strengthening westerly jet stream will push another weather system onshore late in the day. Clouds will be increasing, with a slight chance of light showers, mainly north, by the late afternoon. Ahead of the cold front, temperatures should remain a few degrees above normal. Smoke dispersal conditions will be fair to good with mostly westerly transport winds. OUTLOOK (SATURDAY-MONDAY) In the wake of the cold front, an impressive upper-level trough is forecast to come onshore Saturday. Expect mostly cloudy skies with a chance of showers. Temperatures will drop back to near or slightly below normal. With cooling aloft, look for good afternoon mixing with brisk west-southwesterly transport winds. By Sunday, another unseasonably cold upper-level trough will make camp over the Pacific Northwest. Rain and snow showers will be numerous with precipitation totals near .10 inches. Surface temperatures will be around 10 degrees below normal, but cold air aloft will continue to produce good afternoon mixing. Transport winds will veer to northwesterly. The snow level will drop to near the valley floors Sunday night, with showers beginning to taper off. On Monday, the upper-level trough is forecast to drop southeastward, to over Nevada, with a drier northerly flow aloft developing over Oregon. Skies will begin to clear, with brisk northerly transport winds. Surface temperatures will remain below normal, but the air aloft will stay cool enough for good afternoon mixing. 2. DISPERSION FRIDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning. Afternoon mixing height rises to 3700 - 4700 ft then lowers to 1500 - 2500 ft during the evening. Transport wind WSW to WNW at 9 - 15 mph during the morning. Transport wind increases to WSW to WNW at 15 - 25 mph during the afternoon and evening. Surface wind SW to WNW at 6 - 10 mph. OUTLOOK: SATURDAY Mixing height below 1000 ft early rising to 4000 - 5000 ft by late morning rising above 5000 ft during the afternoon. Transport wind WSW to WNW at 8 - 14 mph during the morning becoming WSW to W at 15 - 29 mph during the afternoon. Surface wind light and variable during the morning becoming WSW to WNW at 10 - 16 mph during the afternoon. SUNDAY Mixing height 2200 - 3200 ft during the morning rising above 5000 ft during the afternoon. Transport wind W to NW at 10 - 20 mph during the morning becoming NW to NNW at 15 - 25 mph during the afternoon. Surface wind W to NW at 6 - 10 mph during the morning becoming WNW to NNW at 10 - 20 mph during the afternoon. MONDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind NNW to NNE at 15 - 25 mph. Surface wind NNW to NNE at 10 - 16 mph. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Friday, May 6, 2011. ================================================================== Avoid ignitions within 15 miles to the WSW through WNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles to the WSW through WNW in or near drainages leading to SSRAs. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Fri May 6 14:35:29 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Fri, 6 May 2011 14:35:29 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Friday, May 6, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 - Issued 7-days-a-week through the spring burning season - SATURDAY In the wake of an early morning cold front, an impressive upper-level trough is forecast to bring increasing showers by the afternoon. Rainfall totals should be mostly less than .10 inches. Temperatures will drop back to slightly below normal with the snow level dropping to 6000 feet. Cooling aloft will make for good afternoon mixing with brisk west-southwesterly transport winds. OUTLOOK (SUNDAY-TUESDAY) On Sunday, an unseasonably cold upper-level trough is forecast to move directly over Oregon. Rain and snow showers will be numerous with widespread precipitation totals near .10 inches. The snow level will drop to near the valley floors, with surface temperatures around 10 degrees below normal. Cold air aloft should maintain good afternoon mixing. Transport winds will veer to west-northwesterly. Showers should taper off Sunday night. By Monday, the upper-level trough is forecast to drop southeastward, to over Nevada, with a drier north-northeasterly flow aloft over Oregon. Skies will begin to clear, with only a slight chance of a shower. The snow level will rise to around 6000 feet in the afternoon, but surface temperatures will remain well below normal. Brisk northerly low-level winds and minor warming aloft may slightly suppress afternoon mixing heights. Tuesday looks mostly dry and warmer, as a transitory upper-level ridge moves onshore and over Oregon. Skies should become mostly sunny with light northerly transport winds possibly turning onshore in the afternoon. Daytime temperatures will recover to slightly above normal, with fair to good afternoon smoke dispersal conditions. 2. DISPERSION SATURDAY Mixing height below 2000 ft early rising to 3500 - 4500 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 2500 - 3500 ft during the evening. Transport wind SSW to WSW at 8 - 12 mph during the morning. Transport wind increases to WSW to W at 15 - 25 mph during the afternoon and evening. Surface wind SSW to WSW at 6 - 10 mph during the morning. Surface wind increases to SW to W at 10 - 18 mph during the afternoon and evening. OUTLOOK: SUNDAY Mixing height 2000 - 3000 ft during the morning rising above 5000 ft during the afternoon. Transport wind WNW to NW at 8 - 12 mph during the morning becoming NW to NNW at 12 - 24 mph during the afternoon. Surface wind WNW to NNW at 5 - 9 mph during the morning becoming WNW to NNW at 10 - 18 mph during the afternoon. MONDAY Mixing height 2400 - 3400 ft during the morning rising to 4000 - 5000 ft during the afternoon. Transport wind NNW to NNE at 10 - 22 mph during the morning becoming NNW to NNE at 15 - 29 mph during the afternoon. Surface wind NNW to NNE at 10 - 16 mph. TUESDAY Mixing height below 1000 ft early rising to 2700 - 3700 ft by late morning rising to 4500 - 5000 ft during the afternoon. Transport wind NNW to NNE at 5 - 9 mph during the morning becoming WSW to WNW at 6 - 10 mph during the afternoon. Surface wind light and variable during the morning becoming WSW to WNW at 4 - 8 mph during the afternoon. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Saturday, May 7, 2011. ================================================================== Avoid ignitions within 10 miles to the SSW through WNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles to the SSW through NW in or near drainages leading to SSRAs. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Sun May 8 16:12:28 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sun, 8 May 2011 16:12:28 -0700 Subject: SMI South Central (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Sunday, May 8, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 MONDAY A very deep (for this time of year) upper low is centered over the Oregon/Idaho/Nevada border early in the day. It pulls slowly south during the day and by evening is centered over Wendover, Utah. As the low moves away weak upper ridging builds offshore. Scattered light showers are possible through much of the day. Maximum mixing heights should be near 5000 feet for good smoke dispersal conditions. EXTENDED OUTLOOK (TUESDAY - THURSDAY) Tuesday the ridge builds and moves over the region for dry weather. Surface temperatures should warm to two to four degrees above average and the warmer daytime conditions should help to keep afternoon mixing heights high for good smoke dispersal conditions. On Wednesday the ridge moves east as yet another deep upper level low moves slowly southeastward in the Gulf of Alaska and begins to affect the Pacific Northwest. This low will be a major weather feature for several days. Wednesday, however, will only see an increase in cloudiness through the day. Temperatures will be from 5 to 8 degrees above average. Models indicate a fair amount of shear in the transport winds. Winds will be generally northwesterly at low levels backing to southwesterly with height. This could limit plume growth and inhibit smoke dispersal conditions. Friday sees a broad upper low centered about 200 miles west of Vancouver Island with southwesterly flow aloft over the region. Expect a few scattered showers and temperatures two to five degrees below average. Mixing heights will climb to 5000 feet or better for good smoke dispersal conditions. 2. DISPERSION MONDAY Transport wind NNW to NNE at 10 - 22 mph. Surface wind NNW to NNE at 10 - 16 mph. OUTLOOK: TUESDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind N to NE at 8 - 14 mph. Surface wind NNW to NNE at 5 - 9 mph. WEDNESDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind S to SW at 4 - 8 mph during the morning becoming SW to WNW at 4 - 8 mph during the afternoon. Surface wind S to SW at 4 - 8 mph during the morning becoming SW to WNW at 4 - 8 mph during the afternoon. THURSDAY Mixing height below 1000 ft early rising to 3400 - 4400 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to W at 4 - 8 mph during the morning becoming light and variable during the afternoon. Surface wind SW to W at 4 - 8 mph. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Monday, May 9, 2011. ================================================================== Avoid ignitions within 10 miles to the NNW through NE of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles to the NNW through NE in or near drainages leading to SSRAs. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Sat May 7 14:32:02 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sat, 7 May 2011 14:32:02 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Saturday, May 7, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 - Issued 7-days-a-week through the spring burning season - SUNDAY An unseasonably cold upper-level trough is forecast to move directly over Oregon. Rain and snow showers will be numerous with widespread precipitation totals near .10 inches. The snow level will be near the valley floors, with surface temperatures 10-15 degrees below normal. Cold air aloft should maintain good daytime mixing with northwesterly transport winds. Showers should taper off overnight. OUTLOOK (MONDAY-WEDNESDAY) On Monday, the upper-level trough is forecast to drop southeastward, to over Nevada, with a drier north-northeasterly flow aloft over Oregon. Skies should slowly clear, with a decreasing chance of showers. The snow level will rise to around 5500 feet in the afternoon, with surface temperatures remaining about 10 degrees below normal. Afternoon mixing should be good with brisk transport winds veering from north-northwesterly to mostly northerly. Tuesday looks mostly dry and warmer, as a transitory upper-level ridge moves onshore and over Oregon. After a cold morning, skies should become mostly sunny with northerly transport winds possibly turning more north-northwesterly in the afternoon. Daytime temperatures will recover to slightly above normal, with good afternoon smoke dispersal conditions. The upper-level ridge is forecast to shift eastward, to over Idaho, by Wednesday morning, with an increasing southwesterly flow aloft over Oregon. The latest computer guidance does not bring the next cold front onshore until around midday, so look for mostly sunny skies to give way to increasing clouds in the afternoon. Some sunshine should help temperatures warm to about 5 degrees above normal. Good mixing is expected with increasing southwesterly transport winds. A chance of showers returns by evening. 2. DISPERSION SUNDAY Mixing height below 2000 ft early rising to 3500 - 4500 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 2500 - 3500 ft during the evening. Transport wind W to NW at 9 - 15 mph during the morning. Transport wind increases to NW to NNW at 12 - 24 mph during the afternoon and evening. Surface wind W to NW at 6 - 10 mph during the morning. Surface wind increases to WNW to NNW at 10 - 18 mph during the afternoon then decreases to NW to NNW at 8 - 12 mph during the evening. OUTLOOK: MONDAY Mixing height 2800 - 3800 ft during the morning rising above 5000 ft during the afternoon. Transport wind NNW to N at 12 - 22 mph during the morning becoming NNW to NNE at 16 - 30 mph during the afternoon. Surface wind NW to N at 8 - 12 mph during the morning becoming NNW to N at 10 - 22 mph during the afternoon. TUESDAY Mixing height below 1000 ft early rising to 2700 - 3700 ft by late morning rising above 5000 ft during the afternoon. Transport wind NNW to NNE at 4 - 8 mph. Surface wind light and variable during the morning becoming NW to N at 4 - 8 mph during the afternoon. WEDNESDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind SSW to SW at 10 - 18 mph. Surface wind SSW to SW at 8 - 12 mph. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Sunday, May 8, 2011. ================================================================== Avoid ignitions within 10 miles to the W through N of SSRAs. No additional restrictions necessary. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Mon May 9 14:23:55 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 9 May 2011 14:23:55 -0700 Subject: SMI South Central (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Monday, May 9, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 TUESDAY An upper level ridge will lie southwest to northeast on an axis from about 900 miles west of Los Angeles to southern British Columbia early in the day on Tuesday. The ridge will drift eastward during the day providing dry weather and sunshine to the region. Transport winds will be light and generally northerly. Afternoon heating should push mixing heights above 5000 feet for generally good smoke dispersal conditions. OUTLOOK (WEDNESDAY - FRIDAY) The upper ridge continues east and the Pacific Northwest starts to come under the influence of an upper level low centered about 250 miles west of the Queen Charlotte Islands on Wednesday morning. A front associated with this low approaches the Oregon coastline during the day, but this side of the Cascades should see just increasing high clouds during the day. Maximum mixing heights will remain high but transport winds will shift to southwesterly. The upper level low rotates to about 350 miles west of Vancouver Island by Thursday. The remains of a front will drag through for some light rain early, then expect partly cloudy skies. Smoke dispersal conditions should remain good. Transport winds will be generally south westerly. Friday sees the upper low about 350 miles west of the mouth of the Columbia River. Wind flow aloft will be southerly. Little change is expected for this area with high maximum mixing heights and a generally southerly transport wind. 2. DISPERSION TUESDAY Mixing height 3200 - 4200 ft during the morning. Mixing height rises above 5000 ft during the afternoon then lowers below 1000 ft during the evening. Transport wind N to NE at 8 - 12 mph during the morning and afternoon. Transport wind becomes light and variable and controlled by local terrain during the evening. Surface wind N to NE at 8 - 12 mph during the morning and afternoon. Surface wind becomes light and variable and controlled by local terrain during the evening. OUTLOOK: WEDNESDAY Mixing height below 1000 ft early rising above 5000 ft by late morning and through the afternoon. Transport wind SSW to SW at 10 - 16 mph during the morning becoming SW to WSW at 15 - 29 mph during the afternoon. Surface wind SSW to SW at 8 - 12 mph during the morning becoming SW to WSW at 12 - 22 mph during the afternoon. THURSDAY Mixing height below 1000 ft early rising to 4000 - 5000 ft by late morning rising above 5000 ft during the afternoon. Transport wind S to SW at 4 - 8 mph. Surface wind S to SW at 4 - 8 mph during the morning becoming light and variable during the afternoon. FRIDAY Mixing height below 1000 ft early rising to 3400 - 4400 ft by late morning rising above 5000 ft during the afternoon. Transport wind S to SW at 4 - 8 mph. Surface wind S to SW at 4 - 8 mph. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Tuesday, May 10, 2011. ================================================================== Avoid ignitions within 15 miles to the NNW through ENE of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles in all directions of SSRAs. Recommend against burning units that will smolder significantly overnight. Complete ignitions by 4:00pm. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Tue May 10 14:08:35 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 10 May 2011 14:08:35 -0700 Subject: SMI South Central (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Tuesday, May 10, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 WEDNESDAY The upper ridge that brought sunshine to much of the state Tuesday moves east on Wednesday. In the meantime an upper level low off the west coast of North America becomes the major factor in Pacific Northwest Weather. A Pacific cold front will move into western Oregon, but the only effect will for south central Oregon during the day will be increasing clouds. Maximum mixing heights will be high and transport winds will be generally south-southwesterly. OUTLOOK (THURSDAY - SATURDAY) The upper low is centered about 300 miles west of Vancouver Island Thursday morning drifting slowly southward. There should be some areas of light rain with the remains of the front. Temperatures will be about four to eight degrees cooler than on Wednesday. With cool air aloft mixing heights should be quite high and transport winds will be brisk southerly or southwesterly most areas for good smoke dispersal conditions. The upper low moves to about 500 miles west of the mouth of the Columbia River by Friday. Upper level flow will be southerly over the region and with the low so far away expect dry weather. Mixing heights should stay high and transport winds will be southerly. By Saturday the low aloft will be about 350 miles west of Brookings but slowly rotating toward northern California. This will bring an increasing chance of rain to the area. Maximum mixing heights will be high, and transport winds will be southerly. 2. DISPERSION WEDNESDAY Mixing height above 5000 ft throughout the day. Mixing height lowers to 4100 - 5000 ft during the evening. Transport wind SSW to WSW at 10 - 18 mph during the morning. Transport wind increases to SSW to SW at 15 - 29 mph during the afternoon and evening. Surface wind SSW to WSW at 9 - 15 mph during the morning. Surface wind increases to SSW to SW at 12 - 22 mph during the afternoon then decreases to SW to WSW at 10 - 16 mph during the evening. OUTLOOK: THURSDAY Mixing height below 1000 ft early rising to 2400 - 3400 ft by late morning rising above 5000 ft during the afternoon. Transport wind SSW to SW at 12 - 24 mph. Surface wind SSW to SW at 8 - 14 mph during the morning becoming SW to WSW at 10 - 22 mph during the afternoon. FRIDAY Mixing height below 1000 ft early rising to 3400 - 4400 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable during the morning becoming SSE to SSW at 4 - 8 mph during the afternoon. Surface wind light and variable during the morning becoming SSE to SSW at 4 - 8 mph during the afternoon. SATURDAY Mixing height below 1000 ft early rising to 2300 - 3300 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable during the morning becoming SSE to SSW at 4 - 8 mph during the afternoon. Surface wind light and variable. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Wednesday, May 11, 2011. ============================================================== Avoid ignitions within 10 miles to the SSW through WSW of SSRAs. Care needed in selecting units as smoke will likely fumigate along the ground in wind prone areas. No additional restrictions necessary. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Tue May 10 14:08:13 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 10 May 2011 14:08:13 -0700 Subject: SMI South Central (Smoke Management Instructions) (no subject) Message-ID: -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Wed May 11 14:48:59 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Wed, 11 May 2011 14:48:59 -0700 Subject: SMI South Central (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Wednesday, May 11, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 THURSDAY An upper level low pressure area will spin off the coast Thursday and Friday then open up and move over Oregon and Washington over the weekend. The remains of a weak cold front will move through during the day for some light rain. It will be quite cool with temperatures 4 to 6 degrees below average. Maximum mixing heights should be quite high for generally good smoke dispersal conditions but expect light shifting transport winds as the front works its way east. EXTENDED OUTLOOK (FRIDAY - SUNDAY) On Friday the upper low remains far enough offshore such that there is very little moisture available for precipitation. Thus expect dry weather and with southerly winds aloft temperatures climb to 4 to 6 degrees above average. Maximum afternoon mixing heights will remain high and smoke dispersal conditions should be generally fair to good with a southerly transport flow. Saturday showers develop as the upper low opens up and rotates into the area as an upper level trough. Smoke dispersal conditions remain good with a southerly transport. Sunday the upper trough is directly over the area. Expect numerous showers and quite cool weather with temperatures tumbling to anywhere from 10 to 15 degrees below average for mid May. Mixing heights should climb to around 4500 feet and transport winds stay southerly. 2. DISPERSION THURSDAY Mixing height 2800 - 3800 ft during the morning. Mixing height rises above 5000 ft during the afternoon then lowers below 1000 ft during the evening. Transport wind SW to WSW at 9 - 15 mph during the morning. Transport wind increases to SW to WSW at 10 - 22 mph during the afternoon then decreases to WSW to WNW at 9 - 15 mph during the evening. Surface wind SW to WSW at 8 - 12 mph during the morning. Surface wind increases to SW to W at 10 - 18 mph during the afternoon then decreases to WSW to WNW at 5 - 9 mph during the evening. OUTLOOK: FRIDAY Mixing height below 1000 ft early rising above 5000 ft by late morning and through the afternoon. Transport wind E to SE at 4 - 8 mph during the morning becoming S to SW at 10 - 20 mph during the afternoon. Surface wind light and variable during the morning becoming S to SW at 9 - 15 mph during the afternoon. SATURDAY Mixing height below 1000 ft early rising to 2600 - 3600 ft by late morning rising above 5000 ft during the afternoon. Transport wind SSE to SSW at 4 - 8 mph. Surface wind SSE to SSW at 4 - 8 mph. SUNDAY Mixing height below 1000 ft early rising to 2000 - 3000 ft by late morning rising to 4000 - 5000 ft during the afternoon. Transport wind light and variable during the morning becoming SSE to SSW at 4 - 8 mph during the afternoon. Surface wind light and variable. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Thursday, May 12, 2011. ================================================================== Avoid ignitions within 15 miles to the SW through WNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles in all directions of SSRAs. Watch for shifting transport winds. Recommend against burning units that will smolder significantly overnight. Complete ignitions by 4:00pm. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Thu May 12 14:48:06 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 12 May 2011 14:48:06 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Thursday, May 12, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 - Issued 7-days-a-week through the spring burning season - FRIDAY An upper-level low-pressure center will produce a warming south-southwesterly flow aloft over Oregon but remain far enough offshore to greatly limit the threat of showers. With just partly cloudy skies and warming aloft, daytime temperatures should climb to above normal. Afternoon heating will destabilize the air mass enough to produce some increase in cloud-cover and possibly a few showers, mainly over higher terrain. Transport winds will start out south-southeasterly and veer to south-southwesterly by late-afternoon. Mixing should be fair to good. OUTLOOK (SATURDAY-MONDAY) On Saturday, the offshore upper-level low-pressure system is forecast to slowly move closer to the southern Oregon coast. Increasing south-southeasterly flow aloft will direct more moisture into the region. Daytime heating will destabilize the air mass, with more widespread afternoon shower and thundershower development likely. Afternoon temperatures should cool back to about 5 degrees below normal with mostly southerly transport winds and fair to good mixing. The upper-level trough is forecast to come onshore Sunday and Monday, with a very cool and moist air mass over Oregon. Expect numerous showers each day with a slight chance of afternoon thunderstorms, mainly on Sunday. The snow level should drop to near the valley floors with maximum temperatures plunging to more than 15 degrees below average. Cooling aloft will maintain fair to good afternoon mixing with southwest to westerly transport winds. 2. DISPERSION FRIDAY Mixing height below 1000 ft early rising to 4000 - 5000 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 3000 - 4000 ft during the evening. Transport wind SSE to SSW at 10 - 18 mph during the morning. Transport wind increases to S to SW at 15 - 25 mph during the afternoon and evening. Surface wind SE to SSW at 5 - 9 mph during the morning. Surface wind increases to S to SW at 9 - 15 mph during the afternoon and evening. OUTLOOK: SATURDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising to 4000 - 5000 ft during the afternoon. Transport wind SSE to SSW at 9 - 15 mph. Surface wind SE to SSW at 6 - 10 mph during the morning becoming SSW to SW at 9 - 15 mph during the afternoon. SUNDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising to 4000 - 5000 ft during the afternoon. Transport wind SSW to SW at 10 - 22 mph. Surface wind SSW to SW at 9 - 15 mph during the morning becoming SW to W at 9 - 15 mph during the afternoon. MONDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising to 4500 - 5000 ft during the afternoon. Transport wind SSW to WSW at 4 - 8 mph during the morning becoming WSW to WNW at 5 - 9 mph during the afternoon. Surface wind SSW to WSW at 4 - 8 mph during the morning becoming WSW to WNW at 5 - 9 mph during the afternoon. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Friday, May 13, 2011. ================================================================== Avoid ignitions within 10 miles to the SSE through SW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles to the SSE through SW in or near drainages leading to SSRAs. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Fri May 13 14:38:06 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Fri, 13 May 2011 14:38:06 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Friday, May 13, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 SATURDAY An offshore upper-level low-pressure system is forecast to slowly move closer to the southern Oregon coast. Increasing southeasterly flow aloft will direct more moisture into the region. A surface thermal trough will be over the region in the morning, before shifting into eastern Oregon by late-afternoon. Daytime heating will destabilize the air mass, with some showers and possible thundershowers by evening. Afternoon temperatures should cool back to about 5 degrees below normal with southerly transport winds veering to southwesterly in the afternoon and evening. Daytime mixing should remain good. OUTLOOK (SUNDAY-TUESDAY) The upper-level trough is forecast to come onshore Sunday and make camp over the Pacific Northwest, slowly weakening Monday and Tuesday. That will park a very cool and moist air mass over Oregon. Expect numerous showers, on Sunday, with a chance of thunderstorms. Rain and snow showers will continue through Tuesday but will be on the decrease. The snow level should drop to near the valley floors with maximum temperatures plunging to around 20 degrees below normal Sunday, moderating to 10-15 degrees below normal by Tuesday. Cooling aloft will maintain good daytime mixing with mostly west to southwest transport winds. 2. DISPERSION SATURDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 3000 - 4000 ft during the evening. Transport wind SSE to SSW at 12 - 22 mph. Surface wind SSE to SSW at 6 - 10 mph. OUTLOOK: SUNDAY Mixing height below 1000 ft early rising to 2200 - 3200 ft by late morning rising above 5000 ft during the afternoon. Transport wind S to SW at 10 - 18 mph. Surface wind S to SW at 8 - 12 mph. MONDAY Mixing height 2200 - 3200 ft during the morning rising above 5000 ft during the afternoon. Transport wind SSW to WSW at 4 - 8 mph during the morning becoming WSW to WNW at 5 - 9 mph during the afternoon. Surface wind light and variable during the morning becoming WSW to NW at 4 - 8 mph during the afternoon. TUESDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind S to SW at 6 - 10 mph. Surface wind S to SW at 4 - 8 mph. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Saturday, May 14, 2011. ================================================================== Avoid ignitions within 12 miles to the SSE through WSW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the SSE through WSW in or near drainages leading to SSRAs. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Sat May 14 14:34:44 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sat, 14 May 2011 14:34:44 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Saturday, May 14, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 SUNDAY An upper-level low-pressure system is forecast to finally come onshore just south of the Oregon/California border. Southeasterly flow aloft will continue, with a substantial increase in the amount of moisture circulating into Oregon. Look for widespread showers and/or areas of steady rain and snow, along with a chance of afternoon thunderstorms. Significant precipitation is forecast, with more than .25" locally possible. The snow level will lower to near the basin floor, with local minor snow accumulations. Maximum temperatures could be as much as 20 degrees below normal. Cooling aloft will make for fair to good smoke dispersal conditions with brisk southwesterly transport winds. OUTLOOK (MONDAY-WEDNESDAY) On Monday, the upper-level low-pressure system is forecast to open into a general trough, with its axis along the coast. The flow aloft will veer from southeasterly to southwesterly, which is a more stable and drier weather pattern. Expect showers to decrease with partial clearing allowing for a chance of afternoon thunderstorms. The snow level will remain near the basin floor with surface temperatures still 10-15 degrees below normal. Maximum mixing heights should climb above 5000 feet with light south to southwesterly transport winds. Another weather system is forecast to feed into the general trough over the Pacific Northwest, on Tuesday, with the main energy directed into Northern California and southern Oregon. Clouds will increase with showers likely, and a chance of thunderstorms, by late-afternoon. The snow level will only rise to 5500 feet, with surface temperatures about 10 degrees below normal. Cool air aloft will maintain good mixing with transport winds veering to more onshore in the afternoon. The upper-level trough appears as if it will finally weaken and shift eastward on Wednesday. A drier northwesterly flow aloft will taper off the shower activity with afternoon clearing. The snow level will be 5500-6000 feet with surface temperatures recovering to within 5 degrees of normal. Afternoon mixing heights should rise above 5000 feet with light north-northwesterly transport winds. 2. DISPERSION SUNDAY Mixing height below 2000 ft early rising to 3000 - 4000 ft by late morning. Afternoon mixing height rises to 4000 - 5000 ft then lowers to 2500 - 3500 ft during the evening. Transport wind SSW to SW at 10 - 18 mph during the morning. Transport wind increases to SW to WSW at 15 - 25 mph during the afternoon then decreases to WSW to WNW at 10 - 20 mph during the evening. Surface wind S to SW at 9 - 15 mph during the morning and afternoon. Surface wind decreases to SW to W at 6 - 10 mph during the evening. OUTLOOK: MONDAY Mixing height 3000 - 4000 ft during the morning rising above 5000 ft during the afternoon. Transport wind SSE to SW at 6 - 10 mph. Surface wind SSE to SSW at 4 - 8 mph. TUESDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind S to SW at 6 - 10 mph during the morning becoming SW to WNW at 6 - 10 mph during the afternoon. Surface wind S to SW at 4 - 8 mph during the morning becoming SW to WNW at 4 - 8 mph during the afternoon. WEDNESDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind NNW to NNE at 6 - 10 mph. Surface wind NW to NNE at 4 - 8 mph. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Sunday, May 15, 2011. ================================================================== Avoid ignitions within 12 miles to the SSW through WNW of SSRAs. No additional restrictions necessary. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Sun May 15 07:52:30 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sun, 15 May 2011 07:52:30 -0700 Subject: SMI South Central (Smoke Management Instructions) Sunday - May 15th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Sun May 15 13:57:04 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sun, 15 May 2011 13:57:04 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Sunday - May 15th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Mon May 16 14:12:41 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 16 May 2011 14:12:41 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Monday - May 16th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Tue May 17 13:53:59 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 17 May 2011 13:53:59 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Tuesday - May 17th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Wed May 18 14:35:41 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Wed, 18 May 2011 14:35:41 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Wednesday, May 18, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 THURSDAY The upper-level trough that has brought unseasonably cool and damp conditions to the region for the past several days will weaken and drift southeastward. It is forecast to stretch from South Dakota to southern California by the afternoon. The counter-clockwise circulation around it will continue to spin some clouds across the region, but a weak ridge of high pressure, building just offshore, will bring a progressively drier northerly flow. Drying and warming of the air mass will lift the freezing level to 8-9000 feet. After a locally frosty morning, abundant sunshine should help maximum temperatures recover to within a few degrees of normal. It will remain cool enough aloft for good daytime mixing with mostly northerly transport winds. OUTLOOK (FRIDAY-SUNDAY) The upper-level ridge axis is forecast to move onshore Friday morning and slowly drift eastward, to near to Idaho border, by evening. Mostly sunny skies should warm afternoon temperatures back above normal. Expect good afternoon mixing with light westerly morning transport winds veering to more northwesterly in the afternoon. On Saturday a weak upper-level trough is forecast to come onshore. An associated cold front will bring increasing clouds along with a chance of a few showers. Since the cooler air will be filtering into the region during the day, temperatures may climb to near normal. Daytime mixing will be good with light westerly transport winds increasing and veering to northwesterly in the afternoon. Westerly flow aloft is forecast to bring mostly cloudy skies and a chance of showers on Sunday. Temperatures will cool to about 5 degrees below average. Daytime mixing should be good with northwesterly transport winds. 2. DISPERSION THURSDAY Mixing height below 1200 ft early rising to 3500 - 4500 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 3000 - 4000 ft during the evening. Transport wind N to NNE at 12 - 22 mph. Surface wind NNW to NNE at 9 - 15 mph. OUTLOOK: FRIDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable during the morning becoming W to NW at 6 - 10 mph during the afternoon. Surface wind light and variable during the morning becoming W to NW at 6 - 10 mph during the afternoon. SATURDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind WSW to WNW at 4 - 8 mph. Surface wind WSW to NW at 4 - 8 mph. SUNDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind NW to N at 4 - 8 mph. Surface wind NW to N at 4 - 8 mph. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Thursday, May 19, 2011. ================================================================== Avoid ignitions within 10 miles to the NNW through NE of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles to the NNW through ESE in or near drainages leading to SSRAs. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Thu May 19 14:36:25 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 19 May 2011 14:36:25 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Thursday, May 19, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 FRIDAY The strong upper-level trough that brought unseasonably cool and damp conditions earlier this week dropped well southeast of Oregon on Thursday and will rotate northeastward, across the Northern Rockies and into the Northern Plains States, on Friday. Meanwhile, a weak ridge of high pressure is forecast to move onshore Friday morning and slowly drift eastward, to near to Idaho border, by evening. Mostly sunny skies should warm afternoon temperatures back to near normal. Expect good daytime mixing with light morning transport winds increasing from the northwest in the afternoon. OUTLOOK (SATURDAY-MONDAY) On Saturday a weak upper-level trough is forecast to come onshore. An associated cold front will bring increasing clouds along with a chance of showers. More clouds and increasing onshore northwesterly winds will drop afternoon temperatures back below normal. Daytime mixing will be good. A moderately strong upper-level trough is forecast to bring mostly cloudy skies and a chance of showers Sunday and Monday. Temperatures will cool to about 5-10 degrees below average. Daytime mixing should be good with brisk northwesterly transport winds. 2. DISPERSION FRIDAY Mixing height below 500 ft early rising to 3000 - 4000 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 2500 - 3500 ft during the evening. Transport wind light and variable and controlled by local terrain during the morning. Transport wind increases to WNW to NNW at 4 - 8 mph during the afternoon and evening. Surface wind light and variable and controlled by local terrain during the morning. Surface wind increases to W to NW at 4 - 8 mph during the afternoon and evening. OUTLOOK: SATURDAY Mixing height below 1000 ft early rising to 4000 - 5000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable during the morning becoming W to NW at 10 - 18 mph during the afternoon. Surface wind light and variable during the morning becoming WNW to NW at 8 - 12 mph during the afternoon. SUNDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind W to NW at 6 - 10 mph during the morning becoming WNW to NNW at 10 - 16 mph during the afternoon. Surface wind W to NW at 4 - 8 mph during the morning becoming WNW to NNW at 9 - 15 mph during the afternoon. MONDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind NNW to NNE at 8 - 12 mph. Surface wind NW to N at 6 - 10 mph. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Friday, May 20, 2011. ================================================================== Avoid ignitions within 12 miles in all directions of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles in all directions of SSRAs. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Thu May 19 15:56:55 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 19 May 2011 15:56:55 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions - Supplemental Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Thursday, May 19, 2011 3:55 PM Pete Parsons Please know that a forecaster will be on duty Friday, May 20th to discuss burning. You may call the smoke management duty forecaster at (503) 945-7401. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Fri May 20 14:35:11 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Fri, 20 May 2011 14:35:11 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Friday, May 20, 2011 2:40 PM Pete Parsons Please Note: A forecaster will be on duty this weekend. 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 SATURDAY A weak upper-level trough is forecast to come onshore in the early morning. An associated cold front will bring increasing clouds along with a chance of showers. There is also a slight chance of an afternoon thunderstorm. More clouds and increasing onshore northwesterly winds will drop afternoon temperatures back below normal. Daytime mixing will be good. OUTLOOK (SUNDAY-TUESDAY) A moderately strong upper-level trough is forecast to bring mostly cloudy skies and a chance of showers Sunday and Monday. Temperatures will cool to about 5-10 degrees below average. Daytime mixing should be good with brisk northwesterly transport winds. The upper-level trough is forecast to weaken by Tuesday, as it moves off to the east. A cool but drier northwesterly flow aloft will slowly clear skies, with high temperatures edging up close to normal. Daytime mixing will remain good but with slackening transport winds. 2. DISPERSION SATURDAY Mixing height below 500 ft early rising to 3500 - 4500 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 2000 - 3000 ft during the evening. Transport wind WNW to NNW at 4 - 8 mph during the morning. Transport wind increases to WNW to NNW at 9 - 15 mph during the afternoon and evening. Surface wind W to NW at 4 - 8 mph during the morning. Surface wind increases to WNW to NNW at 8 - 12 mph during the afternoon then decreases to WNW to NNW at 4 - 8 mph during the evening. OUTLOOK: SUNDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable during the morning becoming WNW to NNW at 6 - 10 mph during the afternoon. Surface wind light and variable during the morning becoming WNW to NNW at 6 - 10 mph during the afternoon. MONDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind NW to N at 5 - 9 mph during the morning becoming NW to NNW at 9 - 15 mph during the afternoon. Surface wind NW to N at 4 - 8 mph. TUESDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Saturday, May 21, 2011. ================================================================== Avoid ignitions within 10 miles to the WNW through NNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles to the WNW through NNW in or near drainages leading to SSRAs. Verify transport winds away from SSRAs if burning in any other direction. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Sat May 21 14:32:58 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sat, 21 May 2011 14:32:58 -0700 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Saturday, May 21, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 SUNDAY An upper-level trough is forecast to extend from the Gulf of Alaska southeastward to over the Pacific Northwest. The second in a series of embedded weather disturbances will rotate onshore during the day. Southwesterly flow aloft will keep skies partly to mostly cloudy with a chance of light showers. High temperatures will likely be about 5 degrees below normal, with cooling aloft maintaining good daytime mixing. Light morning winds will increase from the west-northwest in the afternoon. OUTLOOK (MONDAY-WEDNESDAY) A moderately strong upper-level trough will rotate another embedded weather disturbance onshore Monday. This system looks to be a little stronger than the previous two with enough energy directed at southern Oregon to maintain a chance of mainly afternoon and evening showers. The snow level will drop to about 6000 feet with maximum temperatures running 5-10 degrees below average. Smoke dispersal conditions should be good with increasing northwesterly transport winds. The upper-level trough is forecast to weaken by Tuesday, as it moves off to the east. A weak and transitory upper-level ridge will slowly clear skies with maximum temperatures recovering to within 5 degrees of normal. Daytime mixing will remain good, with transport winds slackening and turning more southwesterly. An impressive upper-level trough is forecast to approach the coastline on Wednesday, as a strengthening southwesterly jet stream directs an active cold front across the state. Skies will turn cloudy with showers developing in the afternoon. Brisk south-southwesterly winds will veer to more westerly in the afternoon with good daytime mixing. 2. DISPERSION SUNDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 2000 - 3000 ft during the evening. Transport wind light and variable and controlled by local terrain during the morning. Transport wind increases to W to NW at 9 - 15 mph during the afternoon and evening. Surface wind light and variable and controlled by local terrain during the morning. Surface wind increases to WNW to NW at 9 - 15 mph during the afternoon and evening. OUTLOOK: MONDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind WNW to NNW at 6 - 10 mph. Surface wind WNW to NNW at 4 - 8 mph during the morning becoming WNW to NW at 9 - 15 mph during the afternoon. TUESDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable during the morning becoming SSW to WSW at 6 - 10 mph during the afternoon. Surface wind light and variable during the morning becoming SSW to WSW at 4 - 8 mph during the afternoon. WEDNESDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind S to SW at 15 - 25 mph during the morning becoming SW to WSW at 18 - 32 mph during the afternoon. Surface wind SSE to SSW at 9 - 15 mph during the morning becoming SW to W at 10 - 20 mph during the afternoon. 3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER RANGE PORTION OF ZONE 624 This instruction is valid for burning conducted on Sunday, May 22, 2011. ================================================================== Avoid ignitions within 12 miles to the WSW through NNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the WSW through N in or near drainages leading to SSRAs. ============================================================== 4. SPECIAL NOTE: The smoke management forecaster is available at (503) 945-7401. The smoke management forecaster is available to discuss specific burns. The duty forecaster phone number is (503) 945-7401. Please call this number and not individual's numbers to discuss daily burning. Please avoid calling before 8 a.m. and between 2 to 3 p.m. This forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Sun May 22 13:56:20 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sun, 22 May 2011 13:56:20 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Sunday - May 22nd, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Mon May 23 14:11:33 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 23 May 2011 14:11:33 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Monday - May 23rd, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Tue May 24 14:03:22 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 24 May 2011 14:03:22 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Tuesday - May 24th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Tue May 24 14:51:11 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 24 May 2011 14:51:11 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Tuesday - May 24th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Wed May 25 13:46:33 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Wed, 25 May 2011 13:46:33 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Wednesday - May 25th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Thu May 26 14:33:28 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 26 May 2011 14:33:28 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Thursday - May 26th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Fri May 27 14:28:21 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Fri, 27 May 2011 14:28:21 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Friday - May 27th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Mon May 30 08:19:58 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 30 May 2011 08:19:58 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Monday - May 30th, 2011 Message-ID: An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Sat May 28 14:35:47 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sat, 28 May 2011 14:35:47 -0700 Subject: SMI South Central (Smoke Management Instructions) Issued: Saturday - May 28th, 2011 Message-ID: An HTML attachment was scrubbed... URL: