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<div>SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS</div>
<div>SALEM FORESTRY WEATHER CENTER</div>
<div>OREGON DEPARTMENT OF FORESTRY</div>
<div> </div>
<div>ISSUED: Monday, November 16, 2009 2:40 PM Jim Little</div>
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<div>1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625</div>
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<div style="padding-left: 36pt; ">Wednesday expect scattered showers with slowly decreasing mixing heights as the air mass slightly stabilizes. Further stabilization will occur on Thursday with generally dry conditions. Smoke dispersal conditions will be
marginal to fair most areas. Another Pacific cold front will finally move into the region late Friday and this should improve mixing heights as it moves through.</div>
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<div> OUTLOOK (WEDNESDAY-FRIDAY)</div>
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<div style="padding-left: 36pt; ">The upper level trough moves west to east across the Pacific Northwest during the day. Subsidence behind the trough starts to stabilize the atmosphere. Mixing heights will fall and smoke dispersal conditions become less favorable.
By Thursday temporary ridging aloft suppresses mixing heights and smoke dispersal conditions further deteriorate. Mixing heights will be near 3000 feet most areas. A strong upper trough approaches Friday and cooler air aloft with this system helps destabilize
the atmosphere and improve burning prospects.</div>
<div> </div>
<div>2. DISPERSION</div>
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<div>TUESDAY</div>
<div>Mixing height 2900 - 3900 ft during the morning. Afternoon mixing height rises to 4000 - 5000 ft then lowers to 2900 - 3900 ft during the evening.</div>
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<div>Transport wind SSW to SW at 38 - 58 mph during the morning. Transport wind decreases to SSW to SW at 27 - 47 mph during the afternoon and decreases to SW to WSW at 15 - 29 mph during the evening.</div>
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<div>Surface wind SSW to SW at 20 - 36 mph during the morning. Surface wind decreases to SSW to WSW at 15 - 25 mph during the afternoon and decreases to SW to W at 6 - 12 mph during the evening.</div>
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<div>OUTLOOK:</div>
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<div>WEDNESDAY</div>
<div>Mixing height 2400 - 3400 ft during the morning rising to 3500 - 4500 ft during the afternoon. Transport wind SW to W at 10 - 22 mph during the morning becoming SSW to SW at 15 - 25 mph during the afternoon. Surface wind SW to W at 6 - 10 mph.</div>
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<div>THURSDAY</div>
<div>Mixing height below 1000 ft early rising to 1000 - 2000 ft by late morning rising to 2000 - 3000 ft during the afternoon. Transport wind light and variable during the morning becoming SE to SSW at 4 - 8 mph during the afternoon. Surface wind light and
variable.</div>
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<div>FRIDAY</div>
<div>Mixing height 2200 - 3200 ft during the morning rising to 3500 - 4500 ft during the afternoon. Transport wind SE to SSW at 6 - 12 mph. Surface wind SE to SSW at 6 - 10 mph during the morning becoming light and variable during the afternoon.</div>
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<div>3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER</div>
<div> RANGE PORTION OF ZONE 624</div>
<div style="padding-left: 36pt; ">This instruction is valid for burning conducted on Tuesday, November 17, 2009.</div>
<div style="padding-left: 36pt; ">==================================================================</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">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 12 miles to the SSW through WNW in or near drainages leading to SSRAs.
Care needed in selecting units as smoke will likely fumigate along the ground in wind prone areas. No additional restrictions necessary. </div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">==============================================================</div>
<div>4. SPECIAL NOTE:</div>
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<div> The smoke management forecaster is available at (503)</div>
<div> 945-7401. The smoke management forecaster is available </div>
<div> to discuss specific burns. The duty forecaster phone </div>
<div> number is (503) 945-7401. Please call this number and </div>
<div> not individual's numbers to discuss daily burning. Please</div>
<div> avoid calling before 8 a.m. and between 2 to 3 p.m. </div>
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<div> This forecast is available on the Internet at: </div>
<div> <a href="http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management"><font color="#0000FF"><u>http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management</u></font></a> </div>
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<div> Please ensure your units have been planned and accomplished by checking: </div>
<div> <a href="http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml"><font color="#0000FF"><u>http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml</u></font></a> </div>
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