<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Exchange Server">
<!-- converted from rtf -->
<style><!-- .EmailQuote { margin-left: 1pt; padding-left: 4pt; border-left: #800000 2px solid; } --></style>
</head>
<body>
<font face="Courier New, monospace" size="2">
<div>SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS</div>
<div>SALEM FORESTRY WEATHER CENTER</div>
<div>OREGON DEPARTMENT OF FORESTRY</div>
<div> </div>
<div>ISSUED: Monday, September 13, 2010 2:35 PM Jim Little</div>
<div> </div>
<div>1. DISCUSSION AND FORECAST FOR NORTHEAST FORECAST AREA ZONES 630-638</div>
<div> </div>
<div> TUESDAY</div>
<div> </div>
<div style="padding-left: 36pt; ">Upper air charts show a generally west-southwesterly flow aloft as an upper level low pressure area intensifies well off the Pacific Northwest coastline. An embedded weak upper disturbance in the flow could touch off a few
showers or isolated thunderstorms, but moisture amounts appear low. None the less we can’t rule out the possibility of a shower. </div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; "> </div>
<div> OUTLOOK (WEDNESDAY-FRIDAY)</div>
<div> </div>
<div style="padding-left: 36pt; ">The flow aloft backs a little southwesterly, but the weak disturbance has moved off to the east for dry weather and more sunshine Wednesday. By Thursday a weak cold front has spun off the upper level low and is draped across
NE Oregon. Models suggest no moisture this far south, however. On Friday a second, stronger, Pacific cold front moves into the northwest and brings precipitation east of the Cascades. Daytime mixing heights remain high throughout the extended period until
Friday when mixing heights briefly spike to around 5000 feet early in the afternoon, but by light afternoon have fallen to only about 2000 feet. </div>
<div><font face="Consolas, monospace"> </font></div>
<div>2. DISPERSION</div>
<div> </div>
<div>TUESDAY</div>
<div> </div>
<div>Zone 630 and 632:</div>
<div>Mixing height 2400 - 3400 ft during the morning. Mixing height rises above 5000 ft during the afternoon then lowers below 1000 ft during the evening.</div>
<div> </div>
<div>Transport wind NNW to NNE at 5 - 9 mph during the morning. Transport wind shifts to SW to W at 6 - 10 mph during the afternoon then shifts to N to NE and increases to 9 - 15 mph during the evening.</div>
<div> </div>
<div>Surface wind NNW to NNE at 5 - 9 mph throughout the morning and afternoon. Surface wind shifts to NNW to NE at 4 - 8 mph during the evening.</div>
<div> </div>
<div>Zone 633 - 638:</div>
<div>Mixing height 2000 - 3000 ft during the morning. Mixing height rises above 5000 ft during the afternoon then lowers below 1000 ft during the evening.</div>
<div> </div>
<div>Transport wind NNW to NNE at 5 - 9 mph throughout the morning and afternoon. Transport wind shifts to NNE to ENE at 6 - 12 mph during the evening.</div>
<div> </div>
<div>Surface wind NNW to NNE at 6 - 10 mph during the morning and afternoon. Surface wind becomes light and variable and controlled by local terrain during the evening.</div>
<div> </div>
<div>OUTLOOK:</div>
<div> </div>
<div>WEDNESDAY</div>
<div>Mixing height below 1000 ft early rising to 3800 to 4800 ft by late morning rising above 5000 ft during the afternoon. Transport wind SE to S at 5 - 9 mph during the morning becoming SW to W at 9 - 15 mph during the afternoon. Surface wind SE to SSW
at 4 - 8 mph during the morning becoming SW to W at 6 - 12 mph during the afternoon.</div>
<div> </div>
<div>THURSDAY</div>
<div>Mixing height below 1000 ft early rising to 3300 to 4300 ft by late morning rising above 5000 ft during the afternoon. Transport wind SSW to WSW at 4 - 8 mph. Surface wind light and variable.</div>
<div> </div>
<div>FRIDAY</div>
<div>Mixing height below 1000 ft early rising to 4500 to 5000 ft by late morning lowering to 2000 to 3000 ft during the afternoon. Transport wind SSE to SW at 4 - 8 mph during the morning becoming WNW to NNW at 4 - 8 mph during the afternoon. Surface wind
light and variable.</div>
<div> </div>
<div>3. BURNING INSTRUCTIONS FOR NORTHEAST OREGON ZONES 630-638</div>
<div> The following considerations should be adhered to in addition to</div>
<div> the requirements of the Oregon Smoke Management Plan. These</div>
<div> Instructions are valid for burning conducted on Tuesday, September 14, 2010.</div>
<div> ==================================================================</div>
<div> </div>
<div style="padding-left: 36pt; ">Zone 630 and 632:</div>
<div style="padding-left: 36pt; ">Avoid ignitions within 15 miles in all directions of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles in all directions of SSRAs. Watch for shifting transport winds.
Recommend against burning units that will smolder significantly overnight. Complete ignitions by 4:00pm </div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Zone 633 - 638:</div>
<div style="padding-left: 36pt; ">Avoid ignitions within 15 miles to the NW through ENE of SSRAs. For units that will smolder significantly through the night avoid burning within at least 30 miles in all directions of SSRAs. Verify transport winds away from
SSRAs if burning in any other direction. Watch for shifting transport winds. Recommend against burning units that will smolder significantly overnight. Complete ignitions by 4:00pm. </div>
<div><font face="Consolas, monospace"> </font></div>
<div> =========================================================</div>
<div>4. SPECIAL NOTE:</div>
<div> </div>
<div> The smoke management forecaster is available at (503)-</div>
<div> 945-7401. Please call this number and not individual's </div>
<div> numbers to discuss daily burning. For large burns (over</div>
<div> 2000 tons) or burns extending over a considerable period,</div>
<div> please request a special forecast. Avoid calling before</div>
<div> 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>
<div><font face="Calibri, sans-serif" size="2"> </font></div>
<div><font face="Calibri, sans-serif" size="2"> </font></div>
</font>
</body>
</html>