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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>NOTE: Fall season smoke management forecasts and instructions will end for 2009 with the forecast issued tomorrow, December 23d. A forecaster will remain available weekdays for consultation throughout the winter. Regular, daily forecasts will begin
again in the spring when burning activity increases. </div>
<div> </div>
<div> </div>
<div>ISSUED: Tuesday, December 22, 2009 2:30 PM Jim Little</div>
<div> </div>
<div>1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623</div>
<div> </div>
<div style="padding-left: 36pt; "> ** Dry and Stable Period Next Few Days **</div>
<div style="padding-left: 36pt; ">** Unfavorable Smoke Dispersal Conditions **</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Pacific Northwest Weather will be dominated by an upper ridge through the end of the week. On Wednesday the axis of this ridge will be about 200 miles west of the coastline and will essentially remain stationary throughout
the day. At the surface highest pressures will be over southern British Columbia. This will give light east-northeast winds to most areas. Mixing heights will allow for only poor smoke dispersal conditions.</div>
<div> </div>
<div> OUTLOOK (THURSDAY-SATURDAY)</div>
<div> </div>
<div style="padding-left: 36pt; ">The upper ridge continues its slow eastward movement. On Thursday it is just off the coast and on Friday the ridge axis finally moves over Oregon and Washington. The ridge pattern starts to slowly break down on Saturday with
only a marginal improvement in smoke dispersal conditions. </div>
<div> </div>
<div> </div>
<div>2. DISPERSION</div>
<div> </div>
<div>Zone 601, 602, 603 and 612 (North Coast Range):</div>
<div> </div>
<div>MORNING</div>
<div>Mixing height below 1000 ft.</div>
<div>Transport wind light and variable.</div>
<div>Surface wind light and variable and controlled by local terrain.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 1000 - 1700 ft.</div>
<div>Transport wind increases to NE to E at 6 - 10 mph.</div>
<div>Surface wind similar to morning.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height lowers below 1000 ft.</div>
<div>Transport wind NE to ENE at 8 - 14 mph.</div>
<div>Surface wind similar to afternoon.</div>
<div> </div>
<div>Zone 605-611 (North Cascades):</div>
<div> </div>
<div>MORNING</div>
<div>Mixing height below 1000 ft.</div>
<div>Transport wind light and variable.</div>
<div>Surface wind light and variable and controlled by local terrain.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 1000 - 1800 ft.</div>
<div>Transport wind similar to morning.</div>
<div>Surface wind similar to morning.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height lowers below 1000 ft.</div>
<div>Transport wind similar to afternoon.</div>
<div>Surface wind similar to afternoon.</div>
<div> </div>
<div>Zone 615-620 (South Coast Range):</div>
<div> </div>
<div>MORNING</div>
<div>Mixing height 1000 - 1500 ft.</div>
<div>Transport wind ENE to ESE at 6 - 10 mph.</div>
<div>Surface wind ENE to ESE at 4 - 8 mph.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 1000 - 1900 ft.</div>
<div>Transport wind increases to ENE to E at 8 - 12 mph.</div>
<div>Surface wind NE to E at 5 - 9 mph.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height lowers below 1000 ft.</div>
<div>Transport wind E to SE at 6 - 10 mph.</div>
<div>Surface wind becomes light and variable and controlled by local terrain.</div>
<div> </div>
<div>Zone 616-623 (South Cascades):</div>
<div> </div>
<div>MORNING</div>
<div>Mixing height below 1000 ft.</div>
<div>Transport wind light and variable.</div>
<div>Surface wind light and variable and controlled by local terrain.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 1000 - 1600 ft.</div>
<div>Transport wind similar to morning.</div>
<div>Surface wind similar to morning.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height lowers below 1000 ft.</div>
<div>Transport wind similar to afternoon.</div>
<div>Surface wind similar to afternoon.</div>
<div> </div>
<div>OUTLOOK:</div>
<div> </div>
<div>THURSDAY</div>
<div>Mixing height below 1000 ft during the morning rising to 1000 to 1600 ft during the afternoon. Transport wind E to ESE at 8 - 12 mph. Surface wind E to SE at 5 - 9 mph.</div>
<div> </div>
<div>FRIDAY</div>
<div>Mixing height below 1000 ft throughout the day. Transport wind light and variable. Surface wind light and variable.</div>
<div> </div>
<div>SATURDAY</div>
<div>Mixing height below 1000 ft during the morning rising to 1000 to 2000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable.</div>
<div> </div>
<div>3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA</div>
<div>These instructions are valid for burning conducted on Wednesday, December 23, 2009.</div>
<div>=================================================================</div>
<div> </div>
<div>Coast Range</div>
<div> </div>
<div>All Zones</div>
<div>Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate.</div>
<div> </div>
<div> </div>
<div>Cascades</div>
<div> </div>
<div>Zone 605, 606, 620, and 622</div>
<div>No burning allowed.</div>
<div> </div>
<div>Zone 607, 608, 616, 617, and 623</div>
<div>Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 609, 610, and 611</div>
<div>Units should be 1000 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs.</div>
<div> </div>
<div> </div>
<div>Siskiyous</div>
<div>Use standard guidance matrix. (See section 5 below.)</div>
<div> </div>
<div>==============================================================</div>
<div>4. SPECIAL NOTE:</div>
<div> </div>
<div> Call the smoke management duty forecaster at (503) 945-7401 to</div>
<div> discuss burning. Please do not call individual's numbers to </div>
<div> discuss daily burning. If the forecaster is not available, </div>
<div> leave a message and he will return your call as soon as possible.</div>
<div> Avoid calling between 2 to 2:30 p.m. </div>
<div> </div>
<div> The 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>
<div> </div>
<div> </div>
<div>5. STANDARD GUIDANCE MATRIX:</div>
<div> </div>
<div> * Greater than 5000 ft mixing height: No burning within 5 miles of </div>
<div> downwind SSRA. Maximum 100 tons per mile from downwind SSRA. </div>
<div> Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA.</div>
<div> </div>
<div> * 3000 - 5000 ft mixing height: No burning within 10 miles of </div>
<div> downwind SSRA. Maximum 75 tons per mile from downwind SSRA. </div>
<div> Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA.</div>
<div> </div>
<div> * Less than 3000 ft mixing height: No burning within 15 miles of </div>
<div> downwind SSRA. Maximum 50 tons per mile from downwind SSRA. </div>
<div> Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA.</div>
<div> </div>
<div> * All exceptions must be coordinated with the duty forecaster </div>
<div> prior to ignition.</div>
<div> </div>
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