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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, April 20, 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; ">The ridge of high pressure in the upper atmosphere that has brought the sunshine and warm weather to the Pacific Northwest will remain on Tuesday; however it will start to weaken as an upper level low pressure area moves across
the northern Gulf of Alaska. The warm temperatures at the surface will continue and may produce enough instability to touch off some isolated afternoon or evening thunderstorms over the southern Cascades Tuesday evening. Mixing heights should be favorable
for good smoke dispersion, reaching to 5000 feet during the afternoons after morning surface inversions break Transport winds will be generally north to north-northwest except light and variable becoming northwest in the Rogue Valley.</div>
<div> </div>
<div> OUTLOOK (WEDNESDAY - FRIDAY)</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">The tail end of the Gulf of Alaska low digs south to off the British Columbia coast on Wednesday, but weather will remain dry. Isolated afternoon thunderstorms are still possible over mountainous areas. Transport winds will
be similar to Tuesdays. On Thursday the upper trough sweeps into the Pacific Northwest. Moisture will be very limited but isolated showers are likely throughout the region. By Friday the trough axis will be east of the Cascades and surface high pressure re-intensifies
off the coast for a continuing northerly component to transport winds. Afternoon maximum mixing heights should be favorable for good smoke dispersal throughout the outlook period. </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 1000 - 1500 ft.</div>
<div style="padding-left: 72pt; ">Transport wind NW to N at 6 - 12 mph.</div>
<div style="padding-left: 72pt; ">Surface wind light and variable and controlled by local terrain.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">AFTERNOON</div>
<div style="padding-left: 72pt; ">Mixing height 1500 - 2500 ft.</div>
<div style="padding-left: 72pt; ">Transport wind NW to NNW at 8 - 14 mph.</div>
<div style="padding-left: 72pt; ">Surface wind increases to W to NNW at 5 - 9 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">EVENING</div>
<div style="padding-left: 72pt; ">Mixing height lowers below 1000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind NW to NNW at 10 - 20 mph.</div>
<div style="padding-left: 72pt; ">Surface wind W to NW at 4 - 8 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 36pt; ">Zone 605-611 (North Cascades):</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">MORNING</div>
<div style="padding-left: 72pt; ">Mixing height 1200 - 2200 ft.</div>
<div style="padding-left: 72pt; ">Transport wind NW to N at 4 - 8 mph.</div>
<div style="padding-left: 72pt; ">Surface wind light and variable and controlled by local terrain.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">AFTERNOON</div>
<div style="padding-left: 72pt; ">Mixing height rising to 4000 - 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind NW to NNW at 8 - 14 mph.</div>
<div style="padding-left: 72pt; ">Surface wind increases to NW to N 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 lowers below 1000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind similar to afternoon.</div>
<div style="padding-left: 72pt; ">Surface wind WNW to NNW at 5 - 9 mph.</div>
<div style="padding-left: 36pt; "> </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 1000 - 1700 ft.</div>
<div style="padding-left: 72pt; ">Transport wind NNW to NNE at 4 - 8 mph.</div>
<div style="padding-left: 72pt; ">Surface wind light and variable and controlled by local terrain.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">AFTERNOON</div>
<div style="padding-left: 72pt; ">Mixing height rising to 2000 - 3000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind NW to N at 6 - 12 mph.</div>
<div style="padding-left: 72pt; ">Surface wind increases to NW to N at 8 - 14 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">EVENING</div>
<div style="padding-left: 72pt; ">Mixing height 1000 - 1600 ft.</div>
<div style="padding-left: 72pt; ">Transport wind NNW to NNE at 8 - 14 mph.</div>
<div style="padding-left: 72pt; ">Surface wind NW to N at 6 - 10 mph.</div>
<div style="padding-left: 72pt; "> </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 1300 - 2300 ft.</div>
<div style="padding-left: 72pt; ">Transport wind light and variable.</div>
<div style="padding-left: 72pt; ">Surface wind light and variable and controlled by local terrain.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">AFTERNOON</div>
<div style="padding-left: 72pt; ">Mixing height rising above 5000 ft.</div>
<div style="padding-left: 72pt; ">Transport wind increases to W to NW at 8 - 12 mph.</div>
<div style="padding-left: 72pt; ">Surface wind increases to WNW to NNW at 6 - 12 mph.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">EVENING</div>
<div style="padding-left: 72pt; ">Mixing height 1000 - 1800 ft.</div>
<div style="padding-left: 72pt; ">Transport wind NW to N at 6 - 12 mph.</div>
<div style="padding-left: 72pt; ">Surface wind NW to N at 5 - 9 mph.</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; ">WEDNESDAY</div>
<div style="padding-left: 72pt; ">In the north mixing height below 1000 ft early rising to 2400 to 3400 ft by late morning rising above 5000 ft during the afternoon. In the south mixing height below 1000 ft early rising to 3200 to 4200 ft by late morning rising
to 3800 to 4800 ft during the afternoon. In the Coast Range transport wind NNW to N at 8 - 12 mph. In the Cascades transport wind WNW to NNW at 5 - 9 mph. Surface wind W to NNW at 4 - 8 mph during the morning becoming NW to NNW at 12 - 22 mph during the
afternoon.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">THURSDAY</div>
<div style="padding-left: 72pt; ">In the north mixing height below 1000 ft early rising to 2900 to 3900 ft by late morning rising above 5000 ft during the afternoon. In the south mixing height below 1000 ft early rising to 4000 to 5000 ft by late morning and
through the afternoon. Transport wind WNW to NNW at 5 - 9 mph during the morning becoming WNW to NNW at 9 - 15 mph during the afternoon. Surface wind WNW to NNW at 6 - 10 mph.</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 3400 to 4400 ft by late morning rising above 5000 ft during the afternoon. Transport wind WSW to WNW at 5 - 9 mph during the morning becoming W to NW at 10 - 18 mph during the afternoon.
Surface wind WSW to WNW at 5 - 9 mph during the morning becoming WSW to WNW at 10 - 16 mph during the afternoon.</div>
<div style="padding-left: 36pt; "> </div>
<div>3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA</div>
<div style="padding-left: 36pt; ">These instructions are valid for burning conducted on Tuesday, April 21, 2009.</div>
<div style="padding-left: 36pt; ">=================================================================</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Coast Range</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 72pt; ">Zone 601, 612, and 616 east of R9W</div>
<div style="padding-left: 72pt; ">Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Higher tonnage is possible south of Waldport in Zone 612. Call the forecaster.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Zone 602, 603, and 620</div>
<div style="padding-left: 72pt; ">No burning allowed. Some burning is possible south of T17S in Zone 603. Call the forecaster. Some burning allowed south of the Rogue River in Zone 620. Call the forecaster.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Zone 615</div>
<div style="padding-left: 72pt; ">Units should be 1500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Zone 616 west of R8W</div>
<div style="padding-left: 72pt; ">Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Zone 618 and 619</div>
<div style="padding-left: 72pt; ">Use standard guidance matrix. (See section 5 below.)</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Cascades</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 72pt; ">Zone 605, 606, 607, 608, 609, 611, 616, 617, and 623</div>
<div style="padding-left: 72pt; ">Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Zone 610</div>
<div style="padding-left: 72pt; ">Units should be 1000 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Zone 620</div>
<div style="padding-left: 72pt; ">Units should be 500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 72pt; ">Zone 622</div>
<div style="padding-left: 72pt; ">Units should be 1000 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. East of R2W, use standard guidance matrix. (See section 5 below.)</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Siskiyous</div>
<div style="padding-left: 72pt; ">Units should be 1500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.</div>
<div style="padding-left: 72pt; "> </div>
<div style="padding-left: 36pt; ">==============================================================</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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