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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, December 21, 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; ">An upper level low pressure area will be over southeast Oregon and move southeasterly out of the state during the day. Behind the low upper flow over western Oregon will be north-northwesterly. The air mass will be quite
cool with snow levels down to about 1000 feet in the north and 2000 feet in the south during the morning hours. Precipitation will be on the decrease during the day and end Tuesday night. Mixing heights and good transport winds will provide for fair to good
smoke dispersal conditions. </div>
<div> </div>
<div> OUTLOOK (WEDNESDAY-FRIDAY)</div>
<div> </div>
<div style="padding-left: 36pt; ">On Wednesday a strong upper ridge with its axis about 300 miles west of the coastline will settle in. This will give a cool north to north-northwest upper flow pattern to the region. Subsidence with the ridge will lower mixing
heights and smoke dispersal conditions will become poor to unfavorable. The ridge slowly moves east Thursday and Friday but remains to the west of the state. This will keep conditions dry and stable through at least Christmas. </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 2100 - 3100 ft.</div>
<div>Transport wind WNW to NNW at 10 - 18 mph.</div>
<div>Surface wind W to NW at 6 - 10 mph.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 3000 - 4000 ft.</div>
<div>Transport wind similar to morning.</div>
<div>Surface wind similar to morning.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height 1000 - 1800 ft.</div>
<div>Transport wind similar to afternoon.</div>
<div>Surface wind becomes light and variable and controlled by local terrain.</div>
<div> </div>
<div>Zone 605-611 (North Cascades):</div>
<div> </div>
<div>MORNING</div>
<div>Mixing height 1100 - 2100 ft.</div>
<div>Transport wind SW to WNW at 5 - 9 mph.</div>
<div>Surface wind SW to WNW at 5 - 9 mph.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height rising to 2500 - 3500 ft.</div>
<div>Transport wind becomes light and variable and controlled by local terrain.</div>
<div>Surface wind becomes light and variable and controlled by local terrain.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height 1100 - 2100 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 2400 - 3400 ft.</div>
<div>Transport wind NW to NNW at 10 - 16 mph.</div>
<div>Surface wind WNW to NNW at 8 - 12 mph.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 3000 - 4000 ft.</div>
<div>Transport wind decreases to WNW to NNW at 5 - 9 mph.</div>
<div>Surface wind WNW to NNW at 4 - 8 mph.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height 1000 - 1700 ft.</div>
<div>Transport wind becomes light and variable.</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 2400 - 3400 ft.</div>
<div>Transport wind WNW to NNW at 8 - 14 mph.</div>
<div>Surface wind WNW to NNW at 8 - 12 mph.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 2500 - 3500 ft.</div>
<div>Transport wind becomes light and variable.</div>
<div>Surface wind becomes light and variable and controlled by local terrain.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height 2000 - 3000 ft.</div>
<div>Transport wind similar to afternoon.</div>
<div>Surface wind similar to afternoon.</div>
<div> </div>
<div>OUTLOOK:</div>
<div> </div>
<div>WEDNESDAY</div>
<div>In the north mixing height below 1000 ft during the morning rising to 1500 to 2500 ft during the afternoon. In the south mixing height below 1000 ft early rising to 1000 to 1600 ft by late morning and through the afternoon. Transport wind light and variable.
Surface wind light and variable.</div>
<div> </div>
<div>THURSDAY</div>
<div>Mixing height below 1000 ft throughout the day. Transport wind light and variable. Surface wind light and variable.</div>
<div> </div>
<div>FRIDAY</div>
<div>Mixing height below 1000 ft during the morning rising to 1500 to 2500 ft during the afternoon. Transport wind light and variable during the morning becoming SSE to SSW at 4 - 8 mph during the afternoon. 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 Tuesday, December 22, 2009.</div>
<div>=================================================================</div>
<div> </div>
<div>Coast Range</div>
<div> </div>
<div>Zone 601, 612, and 616 east of R9W</div>
<div>Units should be 750 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 602 and 603</div>
<div>Units should be 300 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Higher tonnage is possible south of the Siuslaw River in Zone 603. Call the forecaster.</div>
<div> </div>
<div>Zone 615 and 616 west of R8W</div>
<div>Units should be 1000 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 618 and 619</div>
<div>Use standard guidance matrix. (See section 5 below.)</div>
<div> </div>
<div>Zone 620</div>
<div>Units should be 500 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Higher tonnage is possible south of T35S. Call the forecaster.</div>
<div> </div>
<div> </div>
<div>Cascades</div>
<div> </div>
<div>Zone 605 and 606</div>
<div>Units should be 500 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 607, 608, 609, 617, and 623</div>
<div>Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate.</div>
<div> </div>
<div>Zone 610 and 611</div>
<div>Units should be 1000 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 616</div>
<div>Units should be 750 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 620 and 622</div>
<div>No burning allowed.</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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