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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: Tuesday, April 14, 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; ">The cool upper level low that has been over the region for the past couple of days will finally drop south into Nevada overnight Tuesday night leaving the Pacific Northwest in a northerly flow aloft early in the day. A few
showers are still possible early, mainly over mountain regions. A weak upper ridge will build during the day ending any showers. Transport winds should be generally north-northwest. Mixing heights should allow fair smoke dispersal conditions.</div>
<div style="padding-left: 36pt; "> </div>
<div> OUTLOOK (THURSDAY - SATURDAY):</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">On Thursday flat ridging should keep the area dry. Expect light and variable transport winds. Computer models are not as strong on the ridge as they were yesterday and thus it now looks like mixing heights will remain higher
than previously thought. Expect fair to good smoke dispersal Thursday. Models are now showing a weak Pacific cold front for Friday although only a little bit of moisture will make it east of the Cascades. Dry weather returns for the weekend. </div>
<div> </div>
<div>2. DISPERSION</div>
<div> </div>
<div style="padding-left: 36pt; ">WEDNESDAY</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 throughout the day. Mixing height lowers to 2300 - 3300 ft during the evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Transport wind NNW to N at 22 - 38 mph during the morning and afternoon. Transport wind decreases to NNW to N at 15 - 29 mph during the evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Surface wind NW to NNW at 10 - 22 mph during the morning and afternoon. Surface wind decreases to WNW to NNW at 8 - 12 mph during the evening.</div>
<div style="padding-left: 36pt; "> </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 NNW to N at 32 - 52 mph during the morning and afternoon. Transport wind decreases to NNW to N at 22 - 38 mph during the evening.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Surface wind NW to NNW at 19 - 33 mph during the morning. Surface wind decreases to NW to NNW at 15 - 25 mph during the afternoon and decreases to WNW to NNW at 10 - 16 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; ">THURSDAY</div>
<div style="padding-left: 72pt; ">Mixing height 1900 to 2900 ft during the morning rising to 4300 to 5000 ft during the afternoon. Transport wind NNW to NNE at 8 - 14 mph during the morning becoming NW to N at 6 - 12 mph during the afternoon. Surface wind
light and variable during the morning becoming NW to NNW at 8 - 12 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 below 1000 ft early rising to 3000 to 4000 ft by late morning rising to 4000 to 5000 ft during the afternoon. Transport wind light and variable during the morning becoming NW to NNE at 6 - 10 mph during the afternoon.
Surface wind light and variable during the morning becoming NW to NNE at 6 - 12 mph during the afternoon.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">SATURDAY</div>
<div style="padding-left: 72pt; ">Mixing height below 1000 ft early rising to 4500 to 5000 ft by late morning and through the afternoon. Transport wind SE to S at 6 - 10 mph. Surface wind SE to S at 6 - 10 mph.</div>
<div> </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 Wednesday, April 15, 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 NNW through N of SSRAs. For units that will smolder significantly through the night avoid burning within at least 15 miles to the NNW through N in or near drainages leading to SSRAs.
Care needed in selecting units as smoke will likely fumigate along the ground in wind prone areas. </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 NNW through N of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the NNW through N in or near drainages leading to SSRAs.
Care needed in selecting units as smoke will likely fumigate along the ground in wind prone areas. </div>
<div style="padding-left: 36pt; "> </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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