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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, May 31, 2010 2:40 PM Jim Little</div>
<div> </div>
<div>1. DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625</div>
<div> </div>
<div> WEDNESDAY</div>
<div style="padding-left: 36pt; "><font face="Consolas, monospace"> </font></div>
<div style="padding-left: 36pt; ">An upper level low in the Gulf of Alaska gives west-southwesterly flow aloft over the region. Minor impulses traveling WSW to NNE in the flow keep scattered showers going through the day. Skies will be mostly cloudy and smoke
dispersal conditions will be fair to good.</div>
<div style="padding-left: 36pt; "> </div>
<div> OUTLOOK (THURSDAY-SATURDAY) </div>
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<div style="padding-left: 36pt; ">The upper low moves slightly west Wednesday and upper flow over the area becomes slightly more southwest. A more significant impulse drives a Pacific front to the coast early on Wednesday. Rain will spread eastward during
the morning and early afternoon. Smoke dispersal conditions will be fair to good. On Thursday the southwest flow aloft continues but the region will be between weather systems. Never the less there will still be enough moisture around for scattered showers.
Slightly warmer surface temperatures should push afternoon mixing heights up a bit for generally good smoke dispersal conditions. A more significant spring storm will develop Friday as a surface low off the SW Oregon coast. This will track from SW to NE toward
northwest Washington. Look for rain and brisk winds throughout the day. </div>
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<div>2. DISPERSION</div>
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<div>TUESDAY</div>
<div>Mixing height below 500 ft early rising to 2000 - 3000 ft by late morning. Afternoon mixing height rises to 4000 - 5000 ft then lowers to 1800 - 2800 ft during the evening.</div>
<div> </div>
<div>Transport wind SSW to SW at 9 - 15 mph during the morning. Transport wind shifts to WSW to WNW at 10 - 18 mph during the afternoon and evening.</div>
<div> </div>
<div>Surface wind SSW to SW at 8 - 12 mph during the morning. Surface wind shifts to WSW to WNW at 9 - 15 mph during the afternoon and evening.</div>
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<div>OUTLOOK:</div>
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<div>WEDNESDAY</div>
<div>Mixing height below 1000 ft early rising to 2900 - 3900 ft by late morning rising to 3500 - 4500 ft during the afternoon. Transport wind SW to WSW at 20 - 36 mph. Surface wind SSW to WSW at 12 - 24 mph.</div>
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<div>THURSDAY</div>
<div>Mixing height below 1000 ft early rising to 4000 - 5000 ft by late morning and through the afternoon. Transport wind S to SW at 12 - 22 mph during the morning becoming SSW to SW at 25 - 45 mph during the afternoon. Surface wind SSE to SSW at 8 - 12 mph
during the morning becoming S to SSW at 12 - 24 mph during the afternoon.</div>
<div> </div>
<div>FRIDAY</div>
<div>Mixing height 2500 - 3500 ft during the morning rising to 4500 - 5000 ft during the afternoon. Transport wind SSW to SW at 22 - 38 mph during the morning becoming SW to W at 15 - 29 mph during the afternoon. Surface wind SSW to SW at 12 - 22 mph during
the morning becoming SW to W at 12 - 22 mph during the afternoon.</div>
<div> </div>
<div>3. BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER</div>
<div> RANGE PORTION OF ZONE 624</div>
<div style="padding-left: 36pt; ">This instruction is valid for burning conducted on Tuesday, June 1, 2010.</div>
<div style="padding-left: 36pt; ">==================================================================</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Avoid ignitions within 12 miles to the SSW through WNW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the SSW through WNW in or near drainages leading to SSRAs.
Watch for shifting transport winds. </div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">==============================================================</div>
<div>4. SPECIAL NOTE:</div>
<div> </div>
<div> The smoke management forecaster is available at (503)</div>
<div> 945-7401. The smoke management forecaster is available </div>
<div> to discuss specific burns. The duty forecaster phone </div>
<div> number is (503) 945-7401. Please call this number and </div>
<div> not individual's numbers to discuss daily burning. Please</div>
<div> avoid calling before 8 a.m. and between 2 to 3 p.m. </div>
<div> </div>
<div> This 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>
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