From smi_south_central at listsmart.osl.state.or.us Wed Dec 1 14:16:50 2010 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Wed, 1 Dec 2010 14:16:50 -0800 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, December 1, 2010 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 THURSDAY A weak upper disturbance moves across the region. Skies will be cloudy with light rain or snow. The snow level will be about 4000 feet. Transport winds will be generally southwesterly. The atmosphere will be fairly stable and smoke dispersal conditions will only marginal. EXTENDED OUTLOOK (FRIDAY - SUNDAY) An upper low in the Gulf of Alaska drops southeast to a position about 500 miles off the Oregon coast Thursday. This will induce a ridge over the Pacific Northwest. The atmosphere will again be very stable. Expect poor ventilation conditions. On Friday the upper low moves to about 600 miles west of San Francisco, California. The ridge axis shifts east and this will allow the low to spread some moisture northward from California and Nevada. Precipitation amounts should be very light, but the atmosphere will remain stable and ventilation conditions remain poor. The remains of the upper low move closer to the California coast on Saturday. Upper flow over the Pacific Northwest goes to nearly due southerly. With warm air aloft and plenty of cloud cover and low sun angle for minimal surface heating, maximum mixing heights remain low and most of the region will experience poor ventilation conditions 2. DISPERSION THURSDAY Mixing height 2200 - 3200 ft throughout the day. Transport wind SW to WSW at 14 - 28 mph during the morning. Transport wind decreases to WSW to WNW at 10 - 20 mph during the afternoon and evening. Surface wind SSW to WSW at 8 - 12 mph during the morning. Surface wind shifts to WSW to WNW at 5 - 9 mph during the afternoon and evening. OUTLOOK: FRIDAY Mixing height 1000 - 1900 ft during the morning and through the afternoon. Transport wind S to SW at 4 - 8 mph during the morning becoming E to SE at 8 - 12 mph during the afternoon. Surface wind light and variable. SATURDAY Mixing height below 1000 ft during the morning rising to 1000 - 2000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable. SUNDAY Mixing height below 1000 ft during the morning rising to 1000 - 2000 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, December 2, 2010. ================================================================== Avoid ignitions within 12 miles to the SW through NW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the SW 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 Thu Dec 2 14:38:41 2010 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 2 Dec 2010 14:38:41 -0800 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: Thursday, December 2, 2010 2:40 PM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 FRIDAY Upper air charts show a deep and compact low developing about 500 miles offshore on Friday. This will pump up a weak ridge over the Pacific Northwest giving dry weather but a very stable atmosphere. Atmospheric ventilation conditions will be generally poor. EXTENDED OUTLOOK (SATURDAY - MONDAY) The upper low moves to about 600 miles west of San Francisco Saturday and winds aloft back to a more southerly direction. This brings some light rain northward from California and Nevada. Amounts will be light and confined mainly to southwestern Oregon. Ventilation conditions remain poor and transport winds generally southerly. On Sunday the upper low off the California coast weakens, upper flow continues southerly and ventilation conditions remain poor to marginal. Expect little change for Monday. 2. DISPERSION FRIDAY Mixing height 1000 - 2000 ft during the morning and afternoon. Mixing height lowers below 1000 ft during the evening. Transport wind E to SE at 4 - 8 mph. Surface wind light and variable and controlled by local terrain. OUTLOOK: SATURDAY Mixing height 1000 - 1900 ft during the morning and through the afternoon. Transport wind S to SW at 4 - 8 mph during the morning becoming E to SE at 8 - 12 mph during the afternoon. Surface wind light and variable. SUNDAY Mixing height below 1000 ft during the morning rising to 1000 - 2000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable. MONDAY Mixing height below 1000 ft during the morning rising to 1000 - 2000 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 Friday, December 3, 2010. ================================================================== Unfavorable burning situation due to very poor smoke dispersion. Delay ignitions until 10:00am. Avoid ignitions within 20 miles to the E through SSE of SSRAs. For units that will smolder significantly through the night avoid burning within at least 35 miles to the E 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 2:30pm. ============================================================== 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 Dec 3 14:20:23 2010 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Fri, 3 Dec 2010 14:20:23 -0800 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, December 3, 2010 2:40 PM Nick Yonker ***Smoke management has ended weekend forecasting for the fall burning season. Today's forecast will include instructions for both Saturday and Sunday. Please call this afternoon if you want to seek waivers from today's instruction for the weekend.*** 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 Upper level ridge will continue to build over the state tomorrow as an upper level low digs to the south several hundred miles to the west and southwest of the state. Southerly flow aloft will stream some mid and high clouds into the region bringing a risk of a few sprinkles or snow flurries. Otherwise, expect mostly dry and fair conditions with some patchy fog in the valleys during the morning hours. Air mass will be stable and wind flow light SE'erly, making for poor smoke dispersion. OUTLOOK (SUNDAY - TUESDAY): Upper level low drops southward to just off the southern California coast and will continue to stream clouds over the state with a continued chance of light showers. Upper ridge gradually moves to the east. Air mass will remain stable with continued offshore to southerly flow. This low gradually dissipates Sunday and Monday but another low moves in to the west of the state by Monday. Air mass will remain stable and will also dry out some. Low will move closer by Tuesday to bring a front just offshore and increase the chance of clouds later in the day. Wind flow will increase from the south and improve mixing and smoke dispersion. 2. DISPERSION SATURDAY Mixing height below 1000 ft during the morning. Afternoon mixing height rises to 1000 - 2000 ft 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 SE to S at 8 - 12 mph during the afternoon and evening. Surface wind light and variable and controlled by local terrain during the morning. Surface wind increases to ESE to S at 5 - 9 mph during the afternoon then becomes light and variable during the evening. OUTLOOK: SUNDAY Mixing height below 1000 ft during the morning rising to 1000 - 2000 ft during the afternoon. Transport wind ESE to S at 6 - 10 mph during the morning becoming SE to S at 10 - 20 mph during the afternoon. Surface wind light and variable during the morning becoming SE to SSW at 6 - 12 mph during the afternoon. MONDAY Mixing height below 1000 ft early rising to 1000 - 1700 ft by late morning and through the afternoon. Transport wind SSE to SSW at 8 - 12 mph during the morning becoming S to SSW at 10 - 22 mph during the afternoon. Surface wind SE to S at 6 - 10 mph during the morning becoming SSE to SSW at 10 - 20 mph during the afternoon. TUESDAY Mixing height below 1000 ft early rising to 1000 - 2000 ft by late morning rising to 2000 - 3000 ft during the afternoon. Transport wind SSE to S at 15 - 25 mph during the morning becoming SSE to SSW at 18 - 32 mph during the afternoon. Surface wind SE to S 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 Saturday and Sunday, December 4 and 5, 2010. ================================================================== For Saturday: Unfavorable burning situation due to very poor smoke dispersion. Delay ignitions until 10 a.m. Avoid ignitions within 20 miles to the ESE through SSW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 35 miles to the ESE through SSW in or near drainages leading to SSRAs. Recommend against burning units that will smolder significantly overnight. Complete ignitions by 2:30 p.m. For Sunday: Unfavorable burning situation due to very poor smoke dispersion. Delay ignitions until 10 a.m. Avoid ignitions within 20 miles to the ESE through SSW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 35 miles to the ESE through SSW in or near drainages leading to SSRAs. Recommend against burning units that will smolder significantly overnight. Complete ignitions by 2:30 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 Mon Dec 6 07:21:48 2010 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 6 Dec 2010 07:21:48 -0800 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, December 6, 2010 7:50 AM Jim Little 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 Upper air charts show a strong low pressure area about 900 miles west of Oregon. This is producing a generally southwesterly flow aloft over the region. This morning, however, a strong upper level disturbance is moving southwest to northeast in the broad scale flow producing shifting winds aloft and was producing some precipitation. Most of the precip has moved to the north of the region and skies will be partly sunny this afternoon. Mixing heights will generally be in the 2500 to 3500 foot range for marginal to fair smoke dispersal conditions. Transport winds will be mostly southwesterly. 2. DISPERSION MONDAY Mixing height above 5000 ft during the morning. Mixing height lowers to 1800 - 2800 ft during the afternoon then rises to 2600 - 3600 ft during the evening. Transport wind SSW to SW at 18 - 30 mph. Surface wind S to SW at 8 - 14 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, December 6, 2010. ================================================================== Avoid ignitions within 12 miles to the SSW through WSW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the S 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 Mon Dec 6 08:26:24 2010 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 6 Dec 2010 08:26:24 -0800 Subject: SMI South Central (Smoke Management Instructions) South Central Smoke Management Instructions Message-ID: >From reviewing recent accomplishments from later November to early December, I've seen very little. Unless there are objections, we plan to end written instructions with the last one this afternoon. We will still be available Monday through Friday for phone consultation at 503-945-7401 if you need our help. Please let us know if you still need written instructions. Thanks! Nick Yonker Meteorology Manager Oregon Department of Forestry 503-945-7451 -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_south_central at listsmart.osl.state.or.us Mon Dec 6 14:19:03 2010 From: smi_south_central at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 6 Dec 2010 14:19:03 -0800 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, December 6, 2010 2:40 PM Jim Little NOTE: With the wind-down in fall burning this office will terminate the daily forecasts and instructions until spring burning commences in the spring. As always, if you have questions or need information and smoke clearances please call the forecaster line at 503-945-7401 anytime Monday through Friday 7:30am to 5:00pm. 1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625 TUESDAY Upper air charts show a deep low pressure circulation centered about 750 miles west of Oregon on Tuesday. An upper ridge lies along a line from Nevada through northern Idaho. A Pacific frontal system will rotate around the offshore low but the high aloft to the east will protect the region from precipitation until overnight Tuesday. However the ridge will help suppress maximum mixing heights and ventilation conditions will remain marginal. EXTENDED OUTLOOK (WEDNESDAY - FRIDAY) The upper low rotates into the northern Gulf of Alaska on Wednesday and flow over the region veers to more southwesterly. Mixing heights generally improve to fair. On Thursday warmer air aloft stabilizes the atmosphere and ventilation conditions deteriorate to marginal. A minor upper level disturbance well to the north should allow for higher maximum mixing heights, thus improving ventilation conditions to fair to good. 2. DISPERSION TUESDAY Mixing height below 1000 ft during the morning. Afternoon mixing height rising to 1700 - 2700 ft then remains near 1700 - 2700 ft during the evening. Transport wind SSE to SSW at 12 - 22 mph during the morning. Transport wind increases to S to SW at 20 - 36 mph during the afternoon and evening. Surface wind SSE to SSW at 6 - 10 mph. OUTLOOK: WEDNESDAY Mixing height 2400 - 3400 ft during the morning and through the afternoon. Transport wind SSW to SW at 32 - 52 mph during the morning becoming SSW to SW at 19 - 33 mph during the afternoon. Surface wind SSW to SW at 16 - 30 mph during the morning becoming SSW to SW at 8 - 14 mph during the afternoon. THURSDAY Mixing height below 1000 ft during the morning rising to 2000 - 3000 ft during the afternoon. Transport wind SSE to SSW at 4 - 8 mph. Surface wind SE to SSW at 4 - 8 mph. FRIDAY Mixing height below 1000 ft early rising to 3000 - 4000 ft by late morning and through the afternoon. Transport wind SW to WNW at 4 - 8 mph. Surface wind W to NW 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, December 7, 2010. ================================================================== Unfavorable burning situation due to very poor smoke dispersion. Delay ignitions until 10:00am. Avoid ignitions within 20 miles to the SSE through SW of SSRAs. Complete ignitions by 2:30pm. ============================================================== 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: