From smi_south_central at listsmart.osl.state.or.us Mon Apr 18 13:59:22 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 18 Apr 2011 13:59:22 -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, April 18, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 TUESDAY Upper level flow will be light west-northwesterly over the region on Tuesday with an upper level jet lying across the southern half of the state. Moisture is limited but the air mass remains cold for this time of year. This will produce high maximum mixing heights and good smoke dispersal conditions. OUTLOOK (WEDNESDAY - FRIDAY) The upper level jet slips south by Wednesday keeping cool conditions aloft over the region. Mixing heights will remain high for good smoke dispersal conditions. A weak disturbance in the upper flow will produce precipitation with the snow level down to around 5000 feet. Transport winds will be generally southwesterly, becoming west-southwesterly most areas late in the day. By Thursday an upper level disturbance swings in from the northwest and phases with a weak disturbance coming across the Pacific to carve out a trough over the Pacific Northwest. This will produce light precipitation most areas. The cool air mass will mean snow at higher elevations but also good smoke dispersal conditions. On Friday expect weak ridging aloft for dry weather but light and variable transport winds. 2. DISPERSION TUESDAY Mixing height above 5000 ft during the morning and afternoon. Mixing height lowers below 1000 ft during the evening. Transport wind light and variable and controlled by local terrain. Surface wind light and variable and controlled by local terrain. OUTLOOK: WEDNESDAY Mixing height 2100 - 3100 ft during the morning rising above 5000 ft during the afternoon. Transport wind SSW to SW at 12 - 24 mph during the morning becoming WSW to W at 10 - 22 mph during the afternoon. Surface wind SSW to WSW at 6 - 12 mph during the morning becoming SW to W at 9 - 15 mph during the afternoon. THURSDAY Mixing height 1800 - 2800 ft during the morning rising above 5000 ft during the afternoon. Transport wind S to SW at 4 - 8 mph during the morning becoming light and variable during the afternoon. Surface wind light and variable. 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. 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, April 19, 2011. ================================================================== Avoid ignitions within 12 miles in all directions 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 Tue Apr 19 14:16:31 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 19 Apr 2011 14:16:31 -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, April 19, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 WEDNESDAY Upper level charts show a broad trough over the eastern Pacific and the western US for Wednesday. An upper level jet cuts across the coastline into central California. This leaves Oregon on the cool side of the jet stream and air mass temperatures will remain well below average for this time of year. There will be only limited moisture available but showers are likely most areas. The cold air aloft will help push mixing heights to high values and smoke dispersal conditions should be good. OUTLOOK (THURSDAY - SATURDAY) On Thursday an upper disturbance swings down from the northwest and phases with a disturbance moving westward across the Pacific to carve out a fairly sharp trough over the eastern Pacific and western US. This should bring rain or snow to most areas. The snow level will be down to about 3500 feet. Smoke dispersal conditions will remain good. The upper disturbances move east on Friday allowing weak ridging over the region. Weather should be dry. Mixing heights will be suppressed slightly but smoke dispersal conditions remain fair to good. Low level flow will be light and from the south. The ridge moves east Saturday and a Pacific front moves in from the west. Rain reaches western Oregon during the morning and spreads east during the afternoon. Expect fair to good smoke dispersal conditions Saturday. 2. DISPERSION WEDNESDAY Mixing height 1700 - 2700 ft during the morning. Mixing height rises to above 5000 ft during the afternoon then lowers to 1200 - 2200 ft during the evening. Transport wind SSW to SW at 13 - 25 mph during the morning and afternoon. Transport wind decreases to WSW to WNW at 6 - 12 mph during the evening. Surface wind SSW to SW at 9 - 15 mph during the morning and afternoon. Surface wind becomes light and variable and controlled by local terrain during the evening. OUTLOOK: THURSDAY Mixing height 1100 - 2100 ft during the morning rising above 5000 ft during the afternoon. Transport wind WNW to NNW at 8 - 12 mph. Surface wind WNW to NNW at 6 - 10 mph. FRIDAY Mixing height below 1000 ft early rising to 2100 - 3100 ft by late morning rising above 5000 ft during the afternoon. Transport wind ESE to SSE at 4 - 8 mph during the morning becoming SSW to WSW at 4 - 8 mph during the afternoon. Surface wind ESE to SSE at 4 - 8 mph during the morning becoming SW to W at 4 - 8 mph during the afternoon. SATURDAY Mixing height below 1000 ft early rising to 2100 - 3100 ft by late morning rising to 4000 - 5000 ft during the afternoon. Transport wind SSE to SSW at 4 - 8 mph during the morning becoming SSW to WSW at 4 - 8 mph during the afternoon. Surface wind SSE to SSW at 4 - 8 mph during the morning becoming SSW to WSW 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 Wednesday, April 20, 2011. ================================================================== Avoid ignitions within 15 miles to the S through WNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles to the S through NW in or near drainages leading to 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 Wed Apr 20 14:32:35 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Wed, 20 Apr 2011 14:32:35 -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, April 20, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 THURSDAY A very cool upper-level trough will remain over the Pacific Northwest, with two embedded disturbances affecting the region. One system is forecast to cut across Washington and northern Oregon, while another starts out over south-central Oregon and progresses eastward during the day. The southern system will bring some rain and snow to south-central Oregon Wednesday night, with locally up to .25 inches possible. The northern system will help to kick the southern system east of the region during the day, with a drier and cool northwesterly flow prevailing by the afternoon. Mixing will be good with northwesterly surface and transport winds. The chance of showers will end by Thursday evening with clearing skies. OUTLOOK (FRIDAY-SUNDAY) A weak upper-level ridge of high pressure is forecast to bring generally dry and warmer conditions on Friday. After a cold start, with morning minimums well down into the 20s, mostly sunny skies should warm afternoon surface temperatures close to normal. A weak disturbance, in an undercutting westerly jet stream, will bring some increasing clouds in the afternoon, with a risk of a shower near the California border. The freezing level will only rise to about 7000 feet, so afternoon heating will provide good mixing. Transport winds will turn mostly light southerly. The weak ridge is forecast to move over Idaho on Saturday with increasing westerly flow aloft over Oregon. The first in a series of potent weather systems will bring mostly cloudy skies along with a chance of light rain by the afternoon. The snow level is forecast to drop to 5500 feet. Light southerly morning transport winds will increase, from the south to southwest, with good afternoon mixing. A strengthening westerly jet stream will drive a strong cold front across the region late Saturday night and early Easter Sunday, followed by a cold and unstable upper-level trough Sunday afternoon and night. Rain and snow are likely, with the snow level dropping to near the valley floors. Precipitation totals could locally exceed .25 inches. Mixing should be good with Southwest to west transport winds. 2. DISPERSION THURSDAY Mixing height above 5000 ft throughout the day. Mixing height lowers to 2300 - 3300 ft during the evening. Transport wind WNW to NNW at 10 - 20 mph. Surface wind W to NW at 6 - 10 mph during the morning. Surface wind increases to WNW to NNW at 9 - 15 mph during the afternoon and evening. 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 SSE to SSW at 4 - 8 mph during the afternoon. Surface wind light and variable. SATURDAY Mixing height below 1000 ft early rising to 2300 - 3300 ft by late morning rising above 5000 ft during the afternoon. Transport wind SSE to SSW at 9 - 15 mph during the morning becoming SSW to SW at 12 - 24 mph during the afternoon. Surface wind SSE to SSW at 4 - 8 mph. SUNDAY Mixing height 3500 - 4500 ft during the morning rising above 5000 ft during the afternoon. Transport wind WSW to W at 12 - 24 mph during the morning becoming WSW to WNW at 22 - 38 mph during the afternoon. Surface wind SW to W at 9 - 15 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, April 21, 2011. ================================================================== Avoid ignitions within 10 miles to the WNW through N of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 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 Apr 21 14:42:05 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 21 Apr 2011 14:42:05 -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, April 21, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 FRIDAY A weak upper-level ridge of high pressure is forecast to bring generally dry and warmer conditions. After a cold start, with morning minimums locally near 20 degrees, mostly sunny skies should warm afternoon surface temperatures to within about 5 degrees of normal. A weak disturbance, in an undercutting westerly jet stream, may bring some afternoon clouds. The freezing level will only rise to about 7000 feet, so afternoon heating will provide good mixing. Transport winds will turn mostly light southeasterly. OUTLOOK (SATURDAY-MONDAY) The upper-level ridge appears as if it will remain strong enough to bring another generally dry day on Saturday. However, a weather system moving across northern California will spread more clouds across the region with a slight chance of a shower. The freezing level will drop slightly, to near 6500 feet, with good daytime mixing. Watch for light southeasterly transport winds to turn onshore in the late afternoon. The upper-level ridge is forecast to weaken and shift east of the region Easter Sunday, with a strengthening westerly jet stream directing a weak cold front onshore. Light rain and snow are likely, with the snow level dropping to around 5000 feet. Precipitation totals could locally exceed .25 inches. Mixing should be good with increasing southwest to west transport winds. A stronger cold front is forecast to come onshore Sunday night and early Monday. This system will have a strong jet stream associated with it and more significant precipitation. Look for the snow level to drop to near the valley floors during the day. Mixing should be good with strong westerly surface and transport winds. 2. DISPERSION FRIDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 1500 - 2500 ft during the evening. Transport wind SE to S at 4 - 8 mph throughout the morning and afternoon. Transport wind shifts to ENE to ESE at 4 - 8 mph during the evening. Surface wind light and variable and controlled by local terrain. OUTLOOK: SATURDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising above 5000 ft during the afternoon. Transport wind E to SE at 4 - 8 mph during the morning becoming light and variable during the afternoon. Surface wind light and variable. SUNDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising above 5000 ft during the afternoon. Transport wind WSW to WNW at 10 - 20 mph. Surface wind WSW to WNW at 8 - 12 mph. MONDAY Mixing height below 1000 ft early rising to 3800 - 4800 ft by late morning rising above 5000 ft during the afternoon. Transport wind WSW to W at 20 - 36 mph. Surface wind WSW to WNW at 10 - 22 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, April 22, 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 ENE through SSW in or near drainages leading to SSRAs. Verify transport winds away from SSRAs if burning in any other direction. Watch for shifting transport winds. Recommend against burning units that will smolder significantly overnight. 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 Fri Apr 22 14:38:45 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Fri, 22 Apr 2011 14:38:45 -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, April 22, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 SCHEDULING NOTE: No forecaster will be available on Saturday, April 23rd. Beginning Sunday, April 24th, we will transition to 7-days-a-week forecasting for the duration of the spring burning season. SATURDAY A weak upper-level ridge is forecast to shift eastward and extend from eastern Oregon northwestward through British Columbia by the afternoon. The ridge will be undercut by a strengthening westerly jet stream aimed at northern California. Clouds will increase with a slight chance of a shower. The freezing level will briefly rise to about 7000 feet, but the air aloft will still be plenty cool enough for daytime heating to provide good mixing. As a surface thermal trough shifts eastward, from western Oregon, into central Oregon, watch for morning light southeasterly transport winds to turn onshore in the mid to late afternoon. OUTLOOK (SUNDAY-TUESDAY) The weak upper-level ridge is forecast to shift well east of the region Easter Sunday, with a strengthening westerly jet stream directing a cold front onshore. Areas of light rain and snow are likely, with the snow level dropping to around 5000 feet. Precipitation totals could locally exceed .10 inches. Mixing should be good with increasing southwest to west transport winds. A stronger cold front is forecast to come onshore Sunday night and early Monday. This system will have a strong jet stream associated with it and more significant precipitation, locally exceeding .25 inches. The snow level will be near 4500 feet, but should drop to near the valley floors, in the wake of the cold front, Monday night. Mixing should be good with brisk west winds. A flat upper-level ridge is forecast to bring a drier and more stable northwesterly flow aloft on Tuesday. Showers will taper off with temperatures remaining well below normal. The freezing level will only rise to about 6000 feet, so afternoon mixing will be good with decreasing west to northwest 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 1500 - 2500 ft during the evening. Transport wind light and variable and controlled by local terrain. Transport wind increases to SW to WNW at 4 - 8 mph during the evening. Surface wind light and variable and controlled by local terrain through the day. Surface wind increases to SW to WNW at 4 - 8 mph during the evening. OUTLOOK: SUNDAY Mixing height below 1000 ft early rising to 2000 - 3000 ft by late morning rising above 5000 ft during the afternoon. Transport wind SSW to WSW at 12 - 24 mph during the morning becoming WSW to WNW at 15 - 29 mph during the afternoon. Surface wind SSW to WSW at 6 - 10 mph during the morning becoming WSW to WNW at 10 - 18 mph during the afternoon. MONDAY Mixing height 2500 - 3500 ft during the morning rising above 5000 ft during the afternoon. Transport wind WSW to WNW at 20 - 36 mph. Surface wind WSW to W at 10 - 22 mph. TUESDAY Mixing height 2200 - 3200 ft during the morning rising above 5000 ft during the afternoon. Transport wind WNW to NW at 8 - 12 mph. 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 Saturday and Sunday, April 23 and 24, 2011. ================================================================== For Saturday: Avoid ignitions within 15 miles in all directions 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 6 p.m. For Sunday: Avoid ignitions within 12 miles to the SW through WNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the S 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 Sun Apr 24 14:04:27 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sun, 24 Apr 2011 14:04:27 -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, April 24, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 MONDAY A fairly deep and compact upper level low moves west across the Pacific Ocean toward Vancouver Island on Monday. The upper trough with this supports an active Pacific cold front. The polar jet is estimated to exceed 175mph at the 30,000 foot level and cuts into North America over extreme southwest Oregon. Oregon will be under the left front quadrant of the jet and thus prone to rainy weather. Rain spreads eastward during the day with amounts generally less than a quarter of an inch. Mixing heights will exceed 5000 feet and west southwesterly transport winds will be brisk for good smoke dispersal conditions. EXTENDED OUTLOOK (TUESDAY - THURSDAY) Minor ridging develops on Tuesday but the jet stream, while weaker, remains over the state. Areas of light rain will continue through the day. Transport winds will be brisk westerly most areas and maximum mixing heights will remain high for good smoke dispersal conditions. Whatever minor ridging develops Tuesday and Tuesday night flattens Wednesday as another upper low and trough move toward the coastline. There will be limited moisture but areas of light rain will continue. High maximum mixing heights will give good smoke dispersal conditions most areas. The upper trough moves in on Thursday supporting a cold front that reaches northwest Oregon early then spreads rain south and east during the day. Precipitation will begin as rain but as the cooler air behind the cold front spreads in snow is possible Thursday night and Friday morning. Smoke dispersal conditions will remain good. 2. DISPERSION MONDAY Mixing height above 5000 ft throughout the day. Mixing height lowers to 2800 - 3800 ft during the evening. Transport wind SW to WSW at 34 - 54 mph during the morning. Transport wind decreases to WSW to WNW at 19 - 33 mph during the afternoon and evening. Surface wind SSW to WSW at 22 - 38 mph during the morning. Surface wind decreases to WSW to WNW at 15 - 25 mph during the afternoon and decreases to WSW to WNW at 10 - 22 mph during the evening. OUTLOOK: TUESDAY Mixing height 4400 - 5000 ft during the morning rising above 5000 ft during the afternoon. Transport wind WSW to WNW at 10 - 20 mph. Surface wind WSW to WNW at 8 - 12 mph. WEDNESDAY Mixing height below 1000 ft early rising to 2100 - 3100 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to W at 4 - 8 mph. Surface wind SW to W at 4 - 8 mph. THURSDAY Mixing height below 1000 ft early rising to 2800 - 3800 ft by late morning rising above 5000 ft during the afternoon. Transport wind SW to W at 4 - 8 mph. Surface wind SW to W at 4 - 8 mph during the morning becoming WSW to NW 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 Monday, April 25, 2011. ================================================================== Avoid ignitions within 10 miles to the SW through WNW 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 Mon Apr 25 16:39:14 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 25 Apr 2011 16:39:14 -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, April 25, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 TUESDAY Upper troughiness slowly gives way to weak ridging aloft during the day on Tuesday. Only limited moisture is available thus expect only a slight chance of showers. Mixing heights will be at 5000 feet or better during the afternoon for good smoke dispersal conditions while transport winds will be southwesterly most areas. OUTLOOK (WEDNESDAY - FRIDAY) The weak ridging moves east during the day on Wednesday as an upper low moves across the southern Gulf of Alaska toward Vancouver Island. It will be generally dry except for a chance for some showers in the northeast mountains. Mixing heights remain high for good smoke dispersal conditions and transport winds should be mostly south to southwest. The upper low drifts across southern British Columbia on Thursday and another surge of moisture moves in for renewed precipitation. Much cooler aloft will push mixing heights to above 5000 feet and brisk southwesterly transport winds will be the rule. This should give continued good smoke dispersal conditions. On Friday post frontal showers continue with transport winds becoming westerly and diminishing. Upper level ridging is beginning to build and shift over the area from the west and should lead to dry weather for the weekend. Mixing heights max out at 5000 feet or above and westerly transport winds indicate good smoke dispersal conditions for Friday. 2. DISPERSION TUESDAY Mixing height above 5000 ft during the morning and afternoon. Mixing height lowers below 1000 ft during the evening. Transport wind WSW to NW at 6 - 10 mph during the morning and afternoon. Transport wind becomes light and variable and controlled by local terrain during the evening. Surface wind WSW to NW at 6 - 10 mph during the morning and afternoon. Surface wind becomes light and variable and controlled by local terrain during the evening. OUTLOOK: WEDNESDAY Mixing height 1700 - 2700 ft during the morning rising above 5000 ft during the afternoon. Transport wind SSW to WSW at 10 - 20 mph during the morning becoming SW to WSW at 16 - 30 mph during the afternoon. Surface wind SSW to WSW at 6 - 12 mph during the morning becoming SW to WSW at 12 - 22 mph during the afternoon. THURSDAY Mixing height 2500 - 3500 ft during the morning rising above 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 WSW to WNW at 4 - 8 mph. FRIDAY Mixing height 2600 - 3600 ft during the morning rising above 5000 ft during the afternoon. Transport wind WNW to NNW at 4 - 8 mph during the morning becoming light and variable during the afternoon. Surface wind WNW to NNW 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, April 26, 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 SSW through NW in or near drainages leading to SSRAs. Verify transport winds away from SSRAs if burning in any other direction. 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 Apr 26 14:03:31 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 26 Apr 2011 14:03:31 -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, April 26, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 WEDNESDAY A weak upper level ridge drifts east out of the state during the day as an upper level low moves toward Vancouver Island. Dry weather will prevail. Mixing heights will at 5000 feet or better and southwesterly transport winds should provide for good smoke dispersal conditions. OUTLOOK (THURSDAY - SATURDAY) The upper level low moves eastward across southern British Columbia with a trailing trough moving across Oregon on Thursday. Light rain develops during the day. Transport winds shift to northwesterly and cool air aloft with the trough will keep mixing heights high for good smoke dispersal conditions. The upper trough slips east and a ridge of high pressure develops in the eastern Pacific and the Gulf of Alaska on Friday. This will shift winds aloft to north northwesterly over the region. Expect continued northwesterly transport winds and good smoke dispersal conditions. By Saturday a surface high noses into western Oregon and a surface thermal trough builds in northern California. Expect dry weather for Saturday with maximum mixing heights climbing to around 4500 feet and west to northwesterly transport winds. 2. DISPERSION WEDNESDAY Mixing height above 5000 ft throughout the day. Mixing height lowers to 3100 - 4100 ft during the evening. Transport wind SSW to SW at 10 - 22 mph during the morning. Transport wind increases to SW to WSW at 14 - 28 mph during the afternoon and evening. Surface wind SSW to WSW at 10 - 18 mph during the morning and afternoon. Surface wind decreases to SW to W at 9 - 15 mph during the evening. OUTLOOK: THURSDAY Mixing height 4000 - 5000 ft during the morning rising above 5000 ft during the afternoon. Transport wind SW to W at 16 - 30 mph during the morning becoming W to NW at 13 - 25 mph during the afternoon. Surface wind SW to W at 10 - 20 mph during the morning becoming W to NW at 10 - 20 mph during the afternoon. FRIDAY Mixing height 2600 - 3600 ft during the morning rising above 5000 ft during the afternoon. Transport wind WNW to NNW at 4 - 8 mph. Surface wind light and variable. SATURDAY Mixing height below 1000 ft early rising to 2000 - 3000 ft by late morning rising to 4000 - 5000 ft during the afternoon. Transport wind WNW to NNW at 4 - 8 mph. Surface wind WNW to NNW 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 Wednesday, April 27, 2011. ================================================================== Avoid ignitions within 10 miles to the SSW through W 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 Wed Apr 27 14:09:04 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Wed, 27 Apr 2011 14:09:04 -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, April 27, 2011 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 THURSDAY An upper level trough on a northeast to southwest axis moves across the region on Thursday. Weather conditions should be mostly dry but there is still a chance of a few light showers. Smoke dispersal conditions will be good most areas and transport winds will be generally west-southwesterly. EXTENDED OUTLOOK (FRIDAY - SUNDAY) The upper trough moves east early and a ridge of high pressure is building to the west of Oregon on Friday, although the axis of that ridge will be several hundred miles to the west of the coastline. South-central Oregon can expect generally dry weather and good smoke dispersal conditions most areas. Transport winds will mostly be from the northwest. Saturday the ridge builds and its axis moves to about 300 miles west of the coast. Weather turns dry. Maximum mixing heights remain high for good smoke dispersal conditions and transport winds will be northwesterly, decreasing during the day. A broad ridge in the upper atmosphere moves over the region on Sunday for fair weather. Smoke dispersal conditions should be fair to good and transport winds will be mostly south-southeasterly. 2. DISPERSION THURSDAY Mixing height above 5000 ft throughout the day. Mixing height lowers to 2100 - 3100 ft during the evening. Transport wind WSW to W at 10 - 22 mph. Surface wind WSW to WNW at 10 - 16 mph. OUTLOOK: FRIDAY Mixing height above 5000 ft throughout the day. Transport wind WNW to NW at 14 - 24 mph. Surface wind W to NW at 10 - 16 mph during the morning becoming NW to NNW at 10 - 22 mph during the afternoon. SATURDAY Mixing height below 1000 ft early rising to 2000 - 3000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable. 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. 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, April 28, 2011. ================================================================== Avoid ignitions within 10 miles to the SW through WNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 10 miles to the SW through NW in or near drainages leading to 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 Thu Apr 28 14:35:20 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 28 Apr 2011 14:35:20 -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, April 28, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 FRIDAY The axis of an unseasonably cold upper-level trough is forecast to slowly push east of the state with a continued cool and somewhat unstable northwesterly flow aloft. Scattered snow showers are likely, mainly over higher terrain, with well below normal temperatures and snow levels near the valley floors. Look for good mixing and brisk northwest transport winds. OUTLOOK (SATURDAY-MONDAY) An upper-level ridge is forecast to build offshore Saturday with a drier and more stable northwesterly flow aloft over Oregon. Look for partly cloudy skies. The snow level will only lift to about 5000 feet, with the air aloft will remaining cold enough for daytime heating to possibly trigger a mountain shower. After a chilly morning, afternoon temperatures will moderate slightly but remain below normal. Mixing should be good with transport winds veering from northwesterly to mostly northerly. A weak upper-level ridge axis is forecast to move onshore Sunday, with sunny skies expected. After a near-record-cold morning, high temperatures should rebound close to normal. The freezing level will jump to around 9000 feet. Warming aloft will stabilize the air mass with fair to good afternoon mixing and generally southeasterly transport winds. The transitory upper-level ridge will push east of the state Monday with an increasing westerly flow aloft bringing a weak cold front onshore by the afternoon. A lack of cold air aloft, with this system, will only drop the freezing level to around 7000 feet. Ahead of the cold front, surface temperatures should warm to slightly above normal with good mixing and increasing southwest to westerly transport winds. The cold front is forecast to only increase clouds across the region, with shower activity staying to the north. 2. DISPERSION FRIDAY Mixing height below 3000 ft early rising to 4000 - 5000 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 2500 - 3500 ft during the evening. Transport wind WNW to NW at 12 - 22 mph during the morning. Transport wind increases to NW to NNW at 18 - 30 mph during the afternoon then decreases to NNW to N at 13 - 25 mph during the evening. Surface wind WNW to NNW at 9 - 15 mph. OUTLOOK: SATURDAY Mixing height 2100 - 3100 ft during the morning rising above 5000 ft during the afternoon. Transport wind NW to N at 4 - 8 mph. Surface wind light and variable during the morning becoming NW to NNW at 8 - 12 mph during the afternoon. SUNDAY Mixing height below 1000 ft early rising to 2500 - 3500 ft by late morning rising to 4000 - 5000 ft during the afternoon. Transport wind E to SE at 4 - 8 mph during the morning becoming SE to S at 4 - 8 mph during the afternoon. Surface wind light and variable. MONDAY Mixing height below 1000 ft early rising to 2500 - 3500 ft by late morning rising to 4500 - 5000 ft during the afternoon. Transport wind SSW to SW at 12 - 24 mph during the morning becoming WSW to W at 15 - 25 mph during the afternoon. Surface wind S to SW at 8 - 12 mph during the morning becoming WSW to WNW at 9 - 15 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, April 29, 2011. ================================================================== Avoid ignitions within 10 miles to the WNW through NNE of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles to the WNW through NNE 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 Apr 29 14:33:43 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Fri, 29 Apr 2011 14:33:43 -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, April 29, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 SATURDAY An upper-level ridge is forecast to build about 500 miles offshore with a drier and more stable northwesterly flow aloft over Oregon. The snow level will only lift to about 5000 feet, with the air aloft remaining cold enough for daytime heating to possibly trigger a mountain shower. After a near-record-cold morning, afternoon temperatures will moderate some but remain below normal. Mixing should be good with northerly transport winds. OUTLOOK (SUNDAY-TUESDAY) A progressive upper-level ridge is forecast to move onshore Sunday, with sunny skies expected. After another near-record-cold morning, high temperatures should rebound close to normal. The freezing level will jump to around 9000 feet. Warming aloft will stabilize the air mass, but afternoon mixing should remain good. Transport winds will slacken and turn mostly southeasterly. The upper-level ridge will push east of the state Monday with an increasing westerly flow aloft bringing a weak cold front onshore by the afternoon. Clouds will increase ahead of the cold front, with surface temperatures warming to slightly above normal. Mixing will be good, with increasing southwesterly transport winds. In the wake of the dry cold front, the freezing level is only forecast to drop to around 7500 feet late, with the transport winds turning more westerly. A weak upper-level trough will push east of the state Tuesday, with a return to a dry northwesterly flow aloft. Skies should be partly cloudy. The freezing level will rise above 10,000 feet, but cool northwest to north winds will hold surface temperatures near normal. Afternoon mixing should be good. 2. DISPERSION SATURDAY Mixing height below 1500 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 NNW to NE at 6 - 10 mph during the morning. Transport wind increases to N to NE at 9 - 15 mph during the afternoon and evening. Surface wind NNW to NE at 4 - 8 mph during the morning. Surface wind increases to NNW to NNE at 8 - 12 mph during the afternoon and evening. OUTLOOK: SUNDAY Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable. MONDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising above 5000 ft during the afternoon. Transport wind SSW to SW at 12 - 24 mph during the morning becoming WSW to W at 18 - 30 mph during the afternoon. Surface wind S to SW at 8 - 12 mph during the morning becoming WSW to WNW at 10 - 20 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 NNW to NE at 4 - 8 mph during the morning becoming NW to N at 6 - 10 mph during the afternoon. Surface wind light and variable during the morning becoming WNW to NNW 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, April 30, 2011. ================================================================== Avoid ignitions within 12 miles to the NNW through NE of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the NNW through E 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 Apr 30 14:35:30 2011 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Sat, 30 Apr 2011 14:35:30 -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, April 30, 2011 2:40 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 SUNDAY A drying northwesterly flow aloft will help to clear skies, in the wake of an unseasonably cold upper-level trough. After another record-cold morning, a transitory upper-level ridge is forecast to move onshore and warm the air mass. High temperatures should rebound close to normal, with the freezing level jumping above 8000 feet. Afternoon heating will likely provide good mixing, with transport winds slackening and turning mostly south to southeasterly. OUTLOOK (MONDAY-WEDNESDAY) The upper-level ridge will push east of the state Monday with an increasing westerly flow aloft directing a cold front onshore by the afternoon. Clouds will increase, but most of the shower activity appears as if it will stay just north of the region. Surface temperatures will warm to near normal, as the freezing level drops to around 6000 feet. Mixing will be good, with increasing southwesterly transport winds turning more westerly in the afternoon. A weak upper-level trough will push east of the state Tuesday, with a return to a dry northwesterly flow aloft. Skies should be partly cloudy. The freezing level will rise above 9000 feet, but cool northwest to north winds will hold surface temperatures near normal. The combination of warming aloft and cool surface temperatures will suppress mixing heights slightly, with fair to good afternoon mixing. Another weak and transitory upper-level ridge is forecast to move onshore by Wednesday afternoon, bringing sunny and warmer conditions. The freezing level will lift to over 10,000 feet. High temperatures will recover to above normal, which should provide good afternoon mixing. Transport winds will be light north to northeasterly. The upper-air pattern is forecast to remain progressive, with long-range computer models differing on the strength of a weaker weather system forecast to come onshore late Thursday and Friday. A more significant cool-down, with a good chance of rain and snow, is advertised by all of the computer models for late next weekend. 2. DISPERSION SUNDAY Mixing height below 500 ft early rising to 3000 - 4000 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 1500 - 2500 ft during the evening. Transport wind ESE to S at 5 - 9 mph. Surface wind ESE to S at 4 - 8 mph during the morning and afternoon. Surface wind becomes light and variable and controlled by local terrain during the 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 SSW to SW at 15 - 25 mph during the morning becoming WSW to WNW at 15 - 29 mph during the afternoon. Surface wind S to SW at 9 - 15 mph during the morning becoming WSW to WNW at 10 - 22 mph during the afternoon. TUESDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning rising to 4000 - 5000 ft during the afternoon. Transport wind NNW to NNE at 9 - 15 mph. Surface wind NNW to NNE at 4 - 8 mph. WEDNESDAY Mixing height below 1000 ft early rising to 2500 - 3500 ft by late morning rising to 4500 - 5000 ft during the afternoon. Transport wind ENE to ESE at 5 - 9 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 Sunday, May 1, 2011. ================================================================== Avoid ignitions within 15 miles to the ESE through SW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles to the ESE through SW in or near drainages leading to SSRAs. Verify transport winds away from SSRAs if burning in any other direction. Recommend against burning units that will smolder significantly overnight. 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: