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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, April 27, 2009 2:35 PM Jim Little</div>
<div> </div>
<div>1. DISCUSSION AND FORECAST FOR NORTHEAST FORECAST AREA ZONES 630-638</div>
<div> </div>
<div style="padding-left: 36pt; ">An upper level disturbance dropping southward from British Columbia on Monday will develop into an upper level low over the Pacific Northwest on Tuesday. This will produce periods of rain throughout the day for most of the
area. The rain will taper off later in the day, but showers are likely through Wednesday. With the cooler air aloft the atmosphere will be rather unstable and mixing heights should be favorable for good smoke dispersal. Expect transport winds to be generally
from the northwest.</div>
<div style="padding-left: 36pt; "> </div>
<div> OUTLOOK (WEDNESDAY - FRIDAY):</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">The upper low drifts slowly eastward across the state on Wednesday. Showers will continue throughout the day. Mixing heights will remain high, transport winds generally north through northeast. By Thursday the upper low
will pass to the east allowing weak ridging to build over the area. Weather should be dry. Transport winds northwesterly. On Friday a Pacific weather system moves toward the state from the southwest. This will increase clouds but any rain should hold off
until the weekend with the heaviest amounts on Sunday.</div>
<div> </div>
<div> </div>
<div>2. DISPERSION</div>
<div> </div>
<div style="padding-left: 36pt; ">TUESDAY</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 630 and 632:</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft during the morning and afternoon. Mixing height lowers below 1000 ft during the evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Transport wind WNW to NW at 15 - 29 mph during the morning. Transport wind decreases to W to NW at 10 - 22 mph during the afternoon and evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Surface wind WNW to NNW at 6 - 10 mph throughout the day.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 36pt; ">Zone 633 - 638:</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft during the morning and afternoon. Mixing height lowers below 1000 ft during the evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Transport wind WNW to NW at 12 - 24 mph during the morning and afternoon. Transport wind decreases to WNW to NNW at 8 - 12 mph during the evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Surface wind NW to NNW at 8 - 12 mph during the morning and afternoon. Surface wind decreases to WNW to NNW at 6 - 10 mph during the evening.</div>
<div style="padding-left: 72pt; "> </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 above 5000 ft by late morning and through the afternoon. Transport wind light and variable during the morning becoming N to NE at 6 - 10 mph during the afternoon. Surface wind light
and variable 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 3800 to 4800 ft during the morning rising above 5000 ft during the afternoon. Transport wind NNW to NNE at 9 - 15 mph during the morning becoming NW to N at 12 - 24 mph during the afternoon. Surface wind NNW
to NNE at 10 - 16 mph during the morning becoming NW to N at 12 - 24 mph during the afternoon.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">FRIDAY</div>
<div style="padding-left: 72pt; ">Mixing height 3800 to 4800 ft during the morning rising above 5000 ft during the afternoon. Transport wind NNW to NNE at 9 - 15 mph during the morning becoming light and variable during the afternoon. Surface wind NNW to
NNE at 10 - 16 mph during the morning becoming light and variable during the afternoon.</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, April 28, 2009.</div>
<div> ==================================================================</div>
<div> </div>
<div style="padding-left: 36pt; ">Zone 630 and 632:</div>
<div style="padding-left: 36pt; ">Avoid ignitions within 12 miles to the W through NW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the W through NNW 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 12 miles to the WNW through NNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the WNW 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. 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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