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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=923493822-20012009>ODF Private Forests News:</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=923493822-20012009></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=923493822-20012009>The statewide suspension on prescribed burning is
lifted effective Wednesday morning. Additional information about changing
conditions is included in this message from ODF meteorology manager Jim
Trost.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=923493822-20012009></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=923493822-20012009>Kevin Weeks</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=923493822-20012009>ODF Agency Affairs / Private Forests
Division</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=923493822-20012009>(503) 945-7427</SPAN></FONT></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> TROST Jim <BR><B>Sent:</B> Tuesday,
January 20, 2009 1:02 PM<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><SPAN lang=EN>
<P><SPAN class=057375120-20012009><FONT face=Arial size=2>The blanket, statewide
suspension of prescribed forestland burning is terminated effective Wednesday
morning, Jan 21. However, conditions remain marginal and any burning that
is planned must be coordinated with the smoke management meteorologist
(503-945-7401) prior to ignition. Until conditions improve, consider only
those units with a critical need to be burned and only those that are well away
from SSRAs.</FONT></SPAN></P>
<P><SPAN class=057375120-20012009><FONT face=Arial size=2>Conditions are far
from ideal and burning will still need to be very carefully controlled.
Here is Jim Little's analysis of what we can expect for the next few
days:</FONT></SPAN></P>
<P><FONT face=Arial size=2>For the past several days the Pacific Northwest has
felt the effects of a major and persistent ridge of high pressure in the upper
atmosphere. This has brought dry weather and warm temperatures to much of
Oregon. The exception has been valley locations which have remained cold due to
low level temperature inversions. The atmosphere has been very stable and smoke
dispersion conditions have been generally poor over the state.</FONT></P>
<P><FONT face=Arial size=2>The upper level ridge axis is now over eastern Idaho
and beginning to weaken. An upper level trough of low pressure is now located
about 400 miles west of the Oregon coastline. Smoke dispersal conditions will
improve slowly as this feature continues to move eastward. However, computer
models indicate that it is splitting into at least three upper systems. The
stronger portions will move to the north and south of Oregon while the weaker
center portion will slowly push into the northern part of the state. </FONT></P>
<P><FONT face=Arial size=2>Unfortunately this will likely not be strong enough
to scour out the cold air in many western valley locations and in the Columbia
Basin. For that, we are now waiting for a stronger upper trough to drop down
from the northwest over the weekend. </FONT></P>
<P><FONT face=Arial size=2>Bottom line: Slowly improving smoke dispersal
conditions the rest of this week, with significantly better conditions over the
weekend. We will be lifting the state-wide ban on forestry burning on Wednesday.
However, we will only approve burns on an individual basis. Complex wind flow
patterns associated with the splitting trough, and continued surface-based
inversions mean approvals will be limited. Feel free to speak with the
forecaster regarding specific locations, but locations below about 2500 feet or
near SSRA's are not likely to be approved.</FONT></P></SPAN></DIV>
<DIV> </DIV>
<DIV align=left><FONT face="Bookman Old Style" color=#000080 size=2>Jim
Trost</FONT></DIV>
<DIV align=left><FONT face="Bookman Old Style" color=#000080 size=2>Meteorology
Manager</FONT></DIV>
<DIV align=left><FONT face="Bookman Old Style" color=#000080 size=2>Oregon Dept
of Forestry</FONT></DIV>
<DIV align=left><FONT face="Bookman Old Style" color=#000080 size=2>2600 State
St, Salem, OR 97310</FONT></DIV>
<DIV align=left><FONT face="Bookman Old Style" color=#000080
size=2>(503)945-7448</FONT></DIV>
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