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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, June 2, 2010 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> THURSDAY</div>
<div style="padding-left: 36pt; "><font face="Consolas, monospace"> </font></div>
<div style="padding-left: 36pt; ">An upper level low continues in the Gulf of Alaska producing a west-southwest flow over the Pacific Northwest. The flow is quite strong, especially for the time of year, with a 125mph plus jet stream cutting across the area
at about 30,000 feet. However, during the day on Thursday the area will be between weather systems and while it will be generally dry I can’t rule out a few widely scattered showers. A low is developing off the SW Oregon coast and this now looks like it will
track toward NW Oregon during the day Thursday. This is a less favorable track for strong winds in Oregon. The system will bring rain however, with rain beginning in the southwest and spreading northward during the evening hours. Rain will be quite heavy
overnight and into Thursday morning. After morning surface-based inversions mixing heights should climb to around 4-5000 feet for good smoke dispersal conditions. </div>
<div style="padding-left: 36pt; "> </div>
<div> OUTLOOK (FRIDAY-SUNDAY)</div>
<div> </div>
<div style="padding-left: 36pt; ">The heavy rain continues into Friday morning then slowly turns to showers and decreases. Mixing heights will provide fair to good smoke dispersal conditions. On Saturday surface high pressure begins to build but showers will
continue, slowly decreasing during the day. At this point Sunday looks like a mostly dry day with partly cloudy skies. Mixing heights both Saturday and Sunday will be near or above 5000 feet for good smoke dispersal conditions. </div>
<div><font face="Consolas, monospace"> </font></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 4200 - 5000 ft.</div>
<div>Transport wind light and variable.</div>
<div>Surface wind SE to S at 4 - 8 mph.</div>
<div> </div>
<div>AFTERNOON</div>
<div>Mixing height above 5000 ft.</div>
<div>Transport wind similar to morning.</div>
<div>Surface wind becomes light and variable and controlled by local terrain.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height lowers below 1000 ft.</div>
<div>Transport wind increases to WSW to NW at 6 - 10 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 500 ft early rising above 5000 ft by late morning.</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 above 5000 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 below 500 ft early rising to 4000 - 5000 ft by late morning.</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 4000 - 5000 ft.</div>
<div>Transport wind SSW to WSW at 5 - 9 mph.</div>
<div>Surface wind increases to SSW to WSW at 5 - 9 mph.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height 3600 - 4600 ft.</div>
<div>Transport wind shifts to E to SE at 4 - 8 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 500 ft early rising to 1300 - 2300 ft by late morning.</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 rising to 3500 - 4500 ft.</div>
<div>Transport wind similar to morning.</div>
<div>Surface wind similar to morning.</div>
<div> </div>
<div>EVENING</div>
<div>Mixing height 2100 - 3100 ft.</div>
<div>Transport wind increases to SE to S at 4 - 8 mph.</div>
<div>Surface wind similar to afternoon.</div>
<div> </div>
<div>OUTLOOK:</div>
<div> </div>
<div>FRIDAY</div>
<div>Mixing height 3200 to 4200 ft throughout the day. Transport wind SW to WSW at 12 - 22 mph during the morning becoming WSW to WNW at 8 - 12 mph during the afternoon. Surface wind SW to WSW at 10 - 20 mph during the morning becoming WSW to NW at 6 - 12
mph during the afternoon.</div>
<div> </div>
<div>SATURDAY</div>
<div>Mixing height below 1000 ft early rising to 4000 to 5000 ft by late morning rising above 5000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable.</div>
<div> </div>
<div>SUNDAY</div>
<div>Mixing height below 1000 ft early rising to 4000 to 5000 ft by late morning rising above 5000 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 Thursday, June 3, 2010.</div>
<div>=================================================================</div>
<div> </div>
<div>Coast Range</div>
<div> </div>
<div>Zone 601 and 612</div>
<div>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> </div>
<div>Zone 602 and 603</div>
<div>Units should be 300 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. Avoid burning in or near corridors.</div>
<div> </div>
<div>Zone 615</div>
<div>Units should be 1500 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 616 west of R8W</div>
<div>Units should be 1200 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster.</div>
<div> </div>
<div>Zone 616 east of R9W</div>
<div>Units should be 750 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster.</div>
<div> </div>
<div>Zone 618, 619, and 620</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 and 606</div>
<div>Units should be 750 tons or less, spaced 5 miles apart, and 10 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. From T12S through T17S in Zone 608 units should be 1000 tons or less, spaced 5 miles apart.</div>
<div> </div>
<div>Zone 610 and 611</div>
<div>Units should be 1500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs.</div>
<div> </div>
<div>Zone 616</div>
<div>Units should be 750 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Avoid ignitions north of T24S. South of T29S higher tonnage is possible. Call the forecaster.</div>
<div> </div>
<div>Zone 620 and 622</div>
<div>Units should be 500 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs.</div>
<div> </div>
<div> </div>
<div>Siskiyous</div>
<div>Units should be 1000 tons or less, spaced 8 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">http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management</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">http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml</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>
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