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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: Wednesday, April 1, 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; ">A Pacific cold front enters northwestern Oregon overnight Wednesday night and sweeps across the </div>
<div style="padding-left: 36pt; ">state during the day on Thursday. Rainfall will be heaviest in the northern zones but rain will reach all the way to </div>
<div style="padding-left: 36pt; ">the California border. Behind the front a fairly strong WSW to NNE pressure gradient will give blustery onshore flow. Transport winds should be generally westerly, backing to west-northwesterly later in the day. Mixing heights
will be high for excellent smoke dispersal conditions.</div>
<div> </div>
<div> OUTLOOK (FRIDAY - SUNDAY)</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Showers will begin to taper off Friday and onshore pressure gradients will relax for less wind. Transport winds will be generally northwesterly across northwestern Oregon with more of a tendency for northerly winds in the
southwest portion of the state. The air mass will stabilize Saturday but mixing heights should remain high for fair to good smoke dispersal conditions. Saturday and Sunday look dry as a Pacific system splits and most rain moves into California before rotating
northward Monday. </div>
<div> </div>
<div>2. DISPERSION</div>
<div> </div>
<div style="padding-left: 36pt; ">Zone 601, 602, 603 and 612 (North Coast Range):</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 72pt; ">MORNING</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind WSW to WNW at 15 - 29 mph.</div>
<div style="padding-left: 72pt; ">Surface wind SSW to WSW at 10 - 18 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">AFTERNOON</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind WNW at 22 - 38 mph.</div>
<div style="padding-left: 72pt; ">Surface wind WSW to W at 10 - 22 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">EVENING</div>
<div style="padding-left: 72pt; ">Mixing height remains above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind WNW at 20 - 34 mph.</div>
<div style="padding-left: 72pt; ">Surface wind WSW to WNW at 10 - 16 mph.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 605-611 (North Cascades):</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 72pt; ">MORNING</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind WSW to W at 14 - 28 mph.</div>
<div style="padding-left: 72pt; ">Surface wind SW to W at 8 - 12 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">AFTERNOON</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind W at 18 - 32 mph.</div>
<div style="padding-left: 72pt; ">Surface wind increases to W to WNW at 12 - 22 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">EVENING</div>
<div style="padding-left: 72pt; ">Mixing height remains above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind similar to afternoon.</div>
<div style="padding-left: 72pt; ">Surface wind decreases to WSW to WNW at 8 - 14 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 36pt; ">Zone 615-620 (South Coast Range):</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 72pt; ">MORNING</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind WSW to NW at 6 - 10 mph.</div>
<div style="padding-left: 72pt; ">Surface wind SW to W at 5 - 9 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">AFTERNOON</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind W to NW at 9 - 15 mph.</div>
<div style="padding-left: 72pt; ">Surface wind shifts to W to NW at 8 - 12 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">EVENING</div>
<div style="padding-left: 72pt; ">Mixing height remains above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind WNW to NNW at 10 - 18 mph.</div>
<div style="padding-left: 72pt; ">Surface wind NW to NNW at 8 - 12 mph.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 616-623 (South Cascades):</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 72pt; ">MORNING</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind WSW to WNW at 8 - 14 mph.</div>
<div style="padding-left: 72pt; ">Surface wind W to NW at 10 - 16 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">AFTERNOON</div>
<div style="padding-left: 72pt; ">Mixing height above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind similar to morning.</div>
<div style="padding-left: 72pt; ">Surface wind similar to morning.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">EVENING</div>
<div style="padding-left: 72pt; ">Mixing height remains above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind W to NW at 10 - 20 mph.</div>
<div style="padding-left: 72pt; ">Surface wind WNW to NNW at 6 - 12 mph.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">OUTLOOK:</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 72pt; ">FRIDAY</div>
<div style="padding-left: 72pt; ">Mixing height 4100 to 5000 ft during the morning rising above 5000 ft during the afternoon. Transport wind W to NW at 10 - 18 mph. Surface wind SW to W at 6 - 12 mph during the morning becoming WNW to NNW at 5 - 9 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 3800 to 4800 ft by late morning rising above 5000 ft during the afternoon. Transport wind ESE to S at 4 - 8 mph during the morning becoming light and variable during the afternoon.
Surface wind ESE to S at 5 - 9 mph during the morning becoming S to SW at 4 - 8 mph during the afternoon.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">SUNDAY</div>
<div style="padding-left: 72pt; ">Mixing height 3800 to 4800 ft throughout the day. Transport wind S to SSW at 10 - 22 mph during the morning becoming SSW to WSW at 6 - 10 mph during the afternoon. Surface wind S to SSW at 10 - 22 mph during the morning becoming
SSW to WSW at 6 - 10 mph during the afternoon.</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 Thursday, April 2, 2009.</div>
<div>=================================================================</div>
<div> </div>
<div>Coast Range</div>
<div> </div>
<div style="padding-left: 36pt; ">Zone 601 and 612</div>
<div style="padding-left: 36pt; ">Units should be 1000 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. Restrict units in or near corridors to 500 tons or less.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 602, 603, and 620</div>
<div style="padding-left: 36pt; ">Units should be 500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. Avoid burning in or near corridors. Higher tonnage is possible south of the Siuslaw River in Zone 603. Call the forecaster. Higher
tonnage is possible south of T35S in Zone 620. Call the forecaster.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 615</div>
<div style="padding-left: 36pt; ">Units should be 1500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 616 west of R8W</div>
<div style="padding-left: 36pt; ">Units should be 1200 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 616 east of R9W</div>
<div style="padding-left: 36pt; ">Units should be 750 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. Restrict units to 500 tons or less south of T30S.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 618</div>
<div style="padding-left: 36pt; ">Use standard guidance matrix. (See section 5 below.)</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 619</div>
<div style="padding-left: 36pt; ">Units should be 2000 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.</div>
<div style="padding-left: 36pt; "> </div>
<div> </div>
<div>Cascades</div>
<div> </div>
<div style="padding-left: 36pt; ">All zones except Zone 610 and 611</div>
<div style="padding-left: 36pt; ">Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. From T15S through T20S in Zone 608 units should be 1000 tons or less, spaced 5 miles apart.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 610 and 611</div>
<div style="padding-left: 36pt; ">Units should be 1000 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.</div>
<div style="padding-left: 36pt; "> </div>
<div> </div>
<div>Siskiyous</div>
<div style="padding-left: 36pt; ">Units should be 1000 tons or less, spaced 5 miles apart, and 10 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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