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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, May 18, 2009 2:35 PM Jim Little</div>
<div> </div>
<ol style="margin-top: 0pt; margin-bottom: 0pt; margin-left: 42pt; ">
<li>DISCUSSION AND FORECAST FOR NORTHEAST FORECAST AREA ZONES 630-638</li></ol>
<div style="padding-left: 18pt; "> </div>
<div style="padding-left: 36pt; ">The upper ridge that provided several days of sunny and warm weather to the Pacific Northwest will have moved to the northern plains states by Tuesday and an upper level low will be moving into British Columbia. A broad upper
level trough will cover Oregon and Washington. This will produce showers throughout the area. Cooler air aloft will give high mixing heights and good to excellent smoke dispersal conditions. </div>
<div style="padding-left: 36pt; "> </div>
<div> OUTLOOK (WEDNESDAY - FRIDAY):</div>
<div> </div>
<div style="padding-left: 36pt; ">Temporary weak ridging will return to the region Wednesday to begin a period of generally dry weather. Afternoon mountain showers are a possibility. Mixing should remain high for favorable smoke dispersal conditions. By
Thursday a thermal trough will develop and move into southwestern Oregon. This will give northeasterly transport winds to the region. West to east flow aloft continues Friday, gradients will be light and minor disturbances aloft could touch off showers over
mountainous areas. </div>
<div>2. DISPERSION</div>
<div> </div>
<div style="padding-left: 36pt; ">TUESDAY</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 72pt; ">Zone 630 and 632:</div>
<div style="padding-left: 72pt; ">Mixing height 3600 - 4600 ft during the morning. Mixing height rises above 5000 ft during the afternoon and evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Transport wind W to NW at 10 - 22 mph during the morning. Transport wind increases to W to WNW at 14 - 28 mph during the afternoon and evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Surface wind light and variable and controlled by local terrain during the morning. Surface wind increases to NNW to NNE at 4 - 8 mph during the afternoon and evening.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 633 - 638:</div>
<div style="padding-left: 72pt; ">Mixing height 3600 - 4600 ft during the morning. Mixing height rises to above 5000 ft during the afternoon then lowers to 3700 - 4700 ft during the evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Transport wind W to NW at 9 - 15 mph during the morning. Transport wind increases to W to NW at 12 - 24 mph during the afternoon and evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Surface wind light and variable and controlled by local terrain during the morning. Surface wind increases to NNW to NNE at 4 - 8 mph during the afternoon and evening.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">OUTLOOK:</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 72pt; ">WEDNESDAY</div>
<div style="padding-left: 72pt; ">Mixing height below 1000 ft early rising to 3000 to 4000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable during the morning becoming NNW to NE at 4 - 8 mph during the afternoon.
Surface wind NW to N at 4 - 8 mph during the morning becoming NW to N at 9 - 15 mph during the afternoon.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">THURSDAY</div>
<div style="padding-left: 72pt; ">Mixing height below 1000 ft early rising to 4000 to 5000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">FRIDAY</div>
<div style="padding-left: 72pt; ">Mixing height below 1000 ft early rising to 4500 to 5000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable.</div>
<div style="padding-left: 36pt; "> </div>
<div>3. BURNING INSTRUCTIONS FOR NORTHEAST OREGON ZONES 630-638</div>
<div> The following considerations should be adhered to in addition to</div>
<div> the requirements of the Oregon Smoke Management Plan. These</div>
<div> Instructions are valid for burning conducted on Tuesday, May 19, 2009.</div>
<div> ==================================================================</div>
<div> </div>
<div style="padding-left: 36pt; ">Zone 630 and 632:</div>
<div style="padding-left: 36pt; ">Avoid ignitions within 10 miles to the W through NW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles to the W through NW in or near drainages leading to SSRAs. </div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 633 - 638:</div>
<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 to the W through NNW 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. Please call this number and not individual's </div>
<div> numbers to discuss daily burning. For large burns (over</div>
<div> 2000 tons) or burns extending over a considerable period,</div>
<div> please request a special forecast. Avoid calling before</div>
<div> 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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