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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: Thursday, April 15, 2010 2:35 PM Nick Yonker</div>
<div> </div>
<div>****Due to the state furlough day tomorrow, April 16<font size="1"><sup>th</sup></font>, the office will not be staffed. We plan to staff the office on Saturday and Sunday, April 17<font size="1"><sup>th</sup></font> and 18<font size="1"><sup>th</sup></font>
and on the weekends from now on through the spring burning season.****</div>
<div> </div>
<div>1. DISCUSSION AND FORECAST FOR NORTHEAST FORECAST AREA ZONES 630-638</div>
<div> </div>
<div style="padding-left: 36pt; ">Upper level low is in the eastern Pacific with a high pressure ridge to the east of the state. The low will continue to bring disturbances toward the region Friday with a chance of afternoon showers or thundershowers. Air
mass will remain mostly unstable under seasonally warm, southerly flow aloft. Expect mostly good smoke dispersion.</div>
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<div> OUTLOOK (SATURDAY - MONDAY):</div>
<div> </div>
<div style="padding-left: 36pt; ">Weather pattern changes little on Saturday from Friday’s pattern. A few showers are possible over the mountains but unlikely anywhere else. Upper level low moves closer to the state Sunday with an increasing chance of moisture
Monday. Air mass remains fairly unstable Saturday, stabilizes Sunday, and then destabilizes Monday.</div>
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<div>2. DISPERSION</div>
<div> </div>
<div>FRIDAY</div>
<div style="padding-left: 36pt; ">Mixing height below 1000 ft early rising to 3500 - 4500 ft by late morning. Afternoon mixing height rises above 5000 ft then lowers to 1800 - 2800 ft during the evening.</div>
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<div style="padding-left: 36pt; ">Transport wind SE to S at 7 - 11 mph during the morning. Transport wind shifts to SW to WNW at 6 - 10 mph during the afternoon then increases to W to NW at 9 - 17 mph during the evening.</div>
<div style="padding-left: 36pt; "> </div>
<div style="padding-left: 36pt; ">Surface wind light and variable and controlled by local terrain during the morning. Surface wind increases to SW to W at 6 - 8 mph during the afternoon and evening.</div>
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<div>OUTLOOK:</div>
<div> </div>
<div>SATURDAY</div>
<div style="padding-left: 36pt; ">Mixing height below 1000 ft early rising to 3300 to 4300 ft by late morning rising above 5000 ft during the afternoon. Transport wind S to SW at 7 - 11 mph. Surface wind S to SW at 4 - 8 mph.</div>
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<div>SUNDAY</div>
<div style="padding-left: 36pt; ">Mixing height below 1000 ft early rising to 2500 to 3500 ft by late morning rising to 3500 to 4500 ft during the afternoon. Transport wind SE to S at 4 - 8 mph during the morning becoming light and variable during the afternoon.
Surface wind light and variable.</div>
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<div>MONDAY</div>
<div style="padding-left: 36pt; ">Mixing height below 1000 ft early rising to 2500 to 3500 ft by late morning rising to 4500 to 5000 ft during the afternoon. Transport wind SSE to SSW at 10 - 20 mph during the morning becoming SSW to SW at 15 - 30 mph during
the afternoon. Surface wind SSE to SSW at 6 - 10 mph.</div>
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<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 Friday, April 16, 2010.</div>
<div> ==================================================================</div>
<div> </div>
<div> For Friday:</div>
<div> </div>
<div style="padding-left: 36pt; ">Avoid ignitions within 12 miles in all directions of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles in all directions of SSRAs. Watch for shifting transport winds.
</div>
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<div><font face="Consolas, monospace"> <font face="Courier New, monospace">For Saturday:</font></font></div>
<div> </div>
<div style="padding-left: 36pt; ">Avoid ignitions within 12 miles to the SSE through WSW of SSRAs. For units that will smolder significantly through the night avoid burning within at least 20 miles to the SSE through WSW of SSRAs.</div>
<div style="padding-left: 36pt; "> </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>
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<div><font face="Calibri, sans-serif" size="2"> </font></div>
<div><font face="Arial, sans-serif" size="2"><i>Nick Yonker</i></font></div>
<div><font face="Arial, sans-serif" size="2"><i>Meteorology Manager</i></font></div>
<div><font face="Arial, sans-serif" size="2"><i>Oregon Department of Forestry</i></font></div>
<div><font face="Arial, sans-serif" size="2"><i>503-945-7451</i></font></div>
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