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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, November 24, 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 ridge of high pressure still dominates Pacific Northwest weather on Wednesday. The ridge axis will be on a line from central Nevada, across northeast Oregon and into northern Idaho. Upper flow will be from
the southwest but any rain will be well to the north of Oregon. Mixing heights will remain low and winds generally light with a tendency to southerly through southeasterly. Smoke dispersal conditions will be poor to marginal. </div>
<div> </div>
<div> </div>
<div> OUTLOOK (THURSDAY-SATURDAY)</div>
<div> </div>
<div style="padding-left: 36pt; ">On Thanksgiving Day the upper ridge moves east and an upper trough slowly approaches the Pacific Northwest. A Pacific cold front will move towards Oregon; however computer models differ a bit on the timing of the onset of
precipitation. It appears that a wave will form on the front and slow its eastward progress. Rain will reach the northwestern corner of Oregon first, then spread south and east. Likely the northwest coast will see rain early in the day with the rain spreading
to all of western Oregon by evening. Cooler air aloft should improve dispersal conditions Thursday and Friday. By Saturday temporary high pressure again takes over for stabilization and deteriorating smoke dispersal conditions. </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 1000 - 2000 ft.</div>
<div>Transport wind SSW to SW at 10 - 20 mph.</div>
<div>Surface wind light and variable and controlled by local terrain.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 1500 - 2000 ft.</div>
<div>Transport wind similar to morning.</div>
<div>Surface wind increases to S to SW at 5 - 9 mph.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height lowers below 500 ft after sunset.</div>
<div>Transport wind SSW to SW at 15 - 29 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 1000 - 2000 ft.</div>
<div>Transport wind S to SW at 4 - 8 mph.</div>
<div>Surface wind light and variable and controlled by local terrain.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 2200 ft.</div>
<div>Transport wind S to SSW at 8 - 14 mph.</div>
<div>Surface wind increases to SSE to SW at 6 - 10 mph.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height lowers below 500 ft after sunset.</div>
<div>Transport wind SSE to SSW at 10 - 18 mph.</div>
<div>Surface wind SSE to SSW at 8 - 14 mph.</div>
<div> </div>
<div>Zone 615-620 (South 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 2000 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 616-623 (South Cascades):</div>
<div> </div>
<div>MORNING</div>
<div>Mixing height below 1000 ft.</div>
<div>Transport wind ESE to S at 4 - 8 mph.</div>
<div>Surface wind light and variable and controlled by local terrain.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height 2500 ft.</div>
<div>Transport wind becomes light and variable.</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 early rising to 1300 to 2300 ft by late morning rising to 3000 to 4000 ft during the afternoon. Transport wind SSE to SW at 6 - 10 mph during the morning becoming SSW to SW at 10 - 20 mph during the afternoon. Surface wind
SE to SSW at 4 - 8 mph during the morning becoming S to SW at 8 - 12 mph during the afternoon.</div>
<div> </div>
<div>FRIDAY</div>
<div>Mixing height 2200 to 3200 ft during the morning rising to 3400 to 4400 ft during the afternoon. Transport wind W to NW at 6 - 10 mph. Surface wind light and variable.</div>
<div> </div>
<div>SATURDAY</div>
<div>Mixing height below 1000 ft early rising to 1000 to 1800 ft during the afternoon. Transport wind SW to W at 4 - 8 mph during the morning becoming light and variable 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 Wednesday, November 25, 2009.</div>
<div>=================================================================</div>
<div> </div>
<div>Coast Range</div>
<div> </div>
<div>Zone 601, 612, 615, 616 west of and R8W</div>
<div>Units should be 1000 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. North of Tillamook in Zone 601, use standard guidance matrix. (See section 5 below.) Higher tonnage is possible south of T29S in Zone 616. Call the forecaster.</div>
<div> </div>
<div>Zone 602 and 603</div>
<div>No burning allowed excet north of T3N in Zone 602, use standard guidance matrix. (See section 5 below.) and units may be 750 tons or less, spaced 15 miles apart, south of the Siuslaw River in Zone 603.</div>
<div> </div>
<div>Zone 616 east of R9W</div>
<div>Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster.</div>
<div> </div>
<div>Zone 618 and 619</div>
<div>Units should be 1500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 620</div>
<div>Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs.</div>
<div> </div>
<div> </div>
<div>Cascades</div>
<div> </div>
<div>Zone 605, 606, 607, 608, 609, 610, 617, and 623</div>
<div>Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. Verify transport winds away from SSRA if burning within 10 miles of the SSRA in Zone 605 and 606.</div>
<div> </div>
<div>Zone 611</div>
<div>Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 616</div>
<div>Units should be 500 tons or less, spaced 15 miles apart, and 15 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>Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs.</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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