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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: Wednesday, May 6, 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 trough in the eastern Pacific is ejecting a frontal system through the region today. Front will move east of the region tonight with moisture diminishing. Cooler air moving in aloft will lower the snow level down
to near 5000 ft tomorrow morning. With the upper trough moving through tomorrow, expect a chance of continued showers. Showers should end by Thursday evening. Air mass will continue unstable and smoke dispersion good through tomorrow.</div>
<div> </div>
<div> OUTLOOK (FRIDAY - SUNDAY):</div>
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<div style="padding-left: 36pt; ">Flat upper level ridge will dry out and stabilize the air mass early Friday. However, daytime heating should bring mixing levels up into the good category again. Generally the pattern will remain dry and tranquil through
Sunday. A trough will approach Sunday and bring a marine push Sunday afternoon. Air mass will maintain a stable morning, unstable afternoon pattern through the period. Wind flow will remain mainly light, favoring northerly flow Friday and Saturday, then
turning onshore on Sunday. Smoke dispersion will be mostly fair.</div>
<div> </div>
<div>2. DISPERSION</div>
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<div>THURSDAY</div>
<div style="padding-left: 36pt; ">Mixing height below 3000 ft early rising to 4300 - 5000 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 2000 - 3000 ft during the evening.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Transport wind W to NW at 9 - 15 mph.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Surface wind WSW to WNW at 6 - 10 mph during the morning. Surface wind increases to WNW to NW at 10 - 18 mph during the afternoon and evening.</div>
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<div>OUTLOOK:</div>
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<div>FRIDAY</div>
<div style="padding-left: 36pt; ">Mixing height below 1000 ft early rising to 3700 - 4700 ft by late morning rising above 5000 ft during the afternoon. Transport wind NE to ESE at 6 - 10 mph during the morning becoming light and variable during the afternoon.
Surface wind light and variable during the morning becoming WNW to NNW at 4 - 8 mph during the afternoon.</div>
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<div>SATURDAY</div>
<div style="padding-left: 36pt; ">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 NNW to NNE at 4 - 8 mph.</div>
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<div>SUNDAY</div>
<div style="padding-left: 36pt; ">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 WSW at 8 - 12 mph during the morning becoming W to NW at 10 - 22 mph during the afternoon.
Surface wind SSW to WSW at 6 - 10 mph during the morning becoming W to NW at 10 - 16 mph 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 Thursday, May 7, 2009.</div>
<div>==================================================================</div>
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<div style="padding-left: 36pt; ">Avoid ignitions within 10 miles to the W through NNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles in all directions of SSRAs. </div>
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<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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