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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: Thursday, December 3, 2009 2:40 PM Nick Yonker</div>
<div> </div>
<div>1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625</div>
<div> </div>
<div style="padding-left: 36pt; ">Upper level ridge is flattening today and will open the door for a trough and cold front to drop down from the north. Cooler air will move in tomorrow late afternoon and evening to begin destabilizing the air mass. Clouds
will increase on Friday but moisture is not expected. Wind flow turns onshore from the SW to NW. Smoke dispersion will remain mostly poor to fair but improve later in the day and evening.</div>
<div> </div>
<div> OUTLOOK (SATURDAY - MONDAY):</div>
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<div style="padding-left: 36pt; ">Cold front and trough will drop to the south on Saturday bringing cooler but mainly dry air to the region. Air mass will destabilize and wind flow turns offshore. Another trough and more arctic-like air mass will drop southward
bringing very chilly and unstable conditions on Sunday. Moisture will be limited but expect some snow flurries or snow showers. Arctic northerly flow will continue into Monday. Smoke dispersion will be mostly good through the period.</div>
<div> </div>
<div>2. DISPERSION</div>
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<div>FRIDAY</div>
<div style="padding-left: 36pt; ">Mixing height below 1000 ft early rising to 1000 - 2000 ft by late morning. Afternoon mixing height rising to 2300 - 3300 ft and remaining the same through the evening.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Transport wind WSW to WNW at 9 - 15 mph during the morning. Transport wind increases to WSW to WNW at 10 - 22 mph during the afternoon and increases to W to WNW at 15 - 25 mph during the evening.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Surface wind SSW to WSW at 4 - 8 mph.</div>
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<div>OUTLOOK:</div>
<div> </div>
<div>SATURDAY</div>
<div style="padding-left: 36pt; ">Mixing height 3700 - 4700 ft during the morning rising above 5000 ft during the afternoon. Transport wind N to NE at 10 - 16 mph. Surface wind NNW to NE at 6 - 12 mph.</div>
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<div>SUNDAY</div>
<div style="padding-left: 36pt; ">Mixing height 4500 - 5000 ft during the morning rising above 5000 ft during the afternoon. Transport wind NE to E at 10 - 20 mph. Surface wind NE to E at 9 - 15 mph.</div>
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<div>MONDAY</div>
<div style="padding-left: 36pt; ">Mixing height 3000 - 4000 ft during the morning rising above 5000 ft during the afternoon. Transport wind NE to E at 8 - 12 mph. Surface wind NE to ESE at 6 - 10 mph during the morning becoming light and variable during the
afternoon.</div>
<div> </div>
<div>3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER</div>
<div> RANGE PORTION OF ZONE 624</div>
<div>This instruction is valid for burning conducted on Friday, December 4, 2009.</div>
<div>==================================================================</div>
<div> </div>
<div style="padding-left: 36pt; ">Delay ignitions until 10 a.m. 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 15 miles to the WSW through NNE in or
near drainages leading to SSRAs. </div>
<div> </div>
<div>==============================================================</div>
<div>4. SPECIAL NOTE:</div>
<div> </div>
<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>
<div> </div>
<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>
<div> </div>
<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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