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<p class=MsoPlainText><span style='font-family:"Courier New"'>SMOKE MANAGEMENT
FORECAST AND INSTRUCTIONS<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>SALEM FORESTRY
WEATHER CENTER<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>OREGON DEPARTMENT
OF FORESTRY<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>ISSUED: Thursday,
April 29, 2010 2:35 PM Jim Little<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>1. DISCUSSION
AND FORECAST FOR NORTHEAST FORECAST AREA ZONES 630-638<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> FRIDAY<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>A
strong northwesterly flow aloft will begin to dry things out, but the air mass
will remain unstable enough for daytime heating to trigger a few showers,
mainly over the mountains. Brisk northwesterly winds and below normal surface
temperatures will continue. Snow levels will start out near 3500 feet and rise
to around 4500 feet in the afternoon. Maximum mixing heights will rise above
5000 feet for good afternoon smoke dispersal conditions<o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> OUTLOOK
(SATURDAY-MONDAY)<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:"Courier New"'>An
upper-level ridge will build closer to the coastline Saturday and Sunday, with
slowly weakening northwesterly flow aloft and onshore flow at the surface.
There will still be a few afternoon and evening showers on Saturday, but Sunday
looks dry. Early morning mixing will marginal, but daytime heating should
provide good afternoon smoke dispersion. The freezing level will slowly rise
to about 7000 feet, by Sunday afternoon, with surface temperatures recovering
to near normal. Another strong cold front is forecast to bring more showers and
increasing onshore flow to the region Monday afternoon. Snow levels will drop
to around 4000 feet Monday night.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>2. DISPERSION<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>FRIDAY<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 630 and 632:<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height
3000 - 4000 ft during the morning. Mixing height rises to above 5000 ft during
the afternoon then lowers to 2500 - 3500 ft during the evening.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Transport wind NW
to NNW at 10 - 22 mph during the morning. Transport wind increases to NW to
NNW at 14 - 28 mph during the afternoon then decreases to NW to NNW at 12 - 22
mph during the evening.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Surface wind WNW
to NNW at 10 - 18 mph during the morning. Surface wind increases to NW to NNW
at 12 - 24 mph during the afternoon then decreases to WNW to NNW at 8 - 12 mph
during the evening.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> <o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Zone 633 - 638:<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height
3000 - 4000 ft during the morning. Mixing height rises to above 5000 ft during
the afternoon then lowers to 2500 - 3500 ft during the evening.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Transport wind W
to NW at 15 - 25 mph during the morning and afternoon. Transport wind
decreases to WNW to NW at 12 - 24 mph during the evening.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Surface wind W to
NW at 9 - 15 mph during the morning. Surface wind increases to WNW to NNW at
12 - 24 mph during the afternoon then decreases to W to NW at 9 - 15 mph during
the evening.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>OUTLOOK:<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>SATURDAY<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height
2000 to 3000 ft during the morning rising above 5000 ft during the afternoon.
Transport wind W to WNW at 16 - 26 mph during the morning becoming WNW to NW at
18 - 32 mph during the afternoon. Surface wind WSW to WNW at 8 - 14 mph during
the morning becoming WNW to NW at 12 - 24 mph during the afternoon.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>SUNDAY<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height
below 1000 ft early rising to 3500 to 4500 ft by late morning rising above 5000
ft during the afternoon. Transport wind NW to NNW at 10 - 18 mph. Surface
wind NW to N at 6 - 10 mph.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>MONDAY<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Mixing height
below 1000 ft early rising to 4500 to 5000 ft by late morning rising above 5000
ft during the afternoon. Transport wind SW to WSW at 15 - 25 mph during the
morning becoming WSW to WNW at 20 - 36 mph during the afternoon. Surface wind
SW to WSW at 8 - 12 mph during the morning becoming W to WNW at 15 - 25 mph
during the afternoon.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>3. BURNING
INSTRUCTIONS FOR NORTHEAST OREGON ZONES 630-638<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> The following
considerations should be adhered to in addition to<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> the requirements
of the Oregon Smoke Management Plan. These<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> Instructions
are valid for burning conducted on Friday, April 30, 2010.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>
==================================================================<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>All Zones:<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>Avoid ignitions
within 12 miles to the W through NNW of SSRAs. For units that will smolder
significantly through the night avoid burning within at least 20 miles to the
SW through NNW in or near drainages leading to SSRAs. Care needed in selecting
units as smoke will likely fumigate along the ground in wind prone areas. <o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>
=========================================================<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>4. SPECIAL NOTE:<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> The smoke
management forecaster is available at (503)-<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> 945-7401.
Please call this number and not individual's <o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> numbers to
discuss daily burning. For large burns (over<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> 2000 tons) or
burns extending over a considerable period,<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> please
request a special forecast. Avoid calling before<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> 8 a.m. and
between 2 to 3 p.m.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> This forecast
is available on the Internet at: <o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management
<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'> Please ensure
your units have been planned and accomplished by checking: <o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:"Courier New"'>
http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml <o:p></o:p></span></p>
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