Statement as of 2:49 PM PDT on August 03, 2009
... Red flag warning remains in effect until 5 PM PDT Tuesday...
A red flag warning remains in effect until 5 PM PDT Tuesday for zones 605..607..606 and 608.
This includes the southern part of The Mount Hood and the Willamette National forests.
An upper level low pressure system will remain off of the California coast through early
Wednesday... then will slowly move into northern California Thursday... and into southern Idaho
by Friday afternoon.
An unstable southeast to south flow aloft will bring the necessary ingredients into place for the
development of scattered thunderstorms across much of the Oregon Cascades... mainly south of
Mount Jefferson.
The combination of lightning and critically dry fuels will result in an elevated risk for multiple
ignitions. Any thunderstorms that do develop will initially produce little precipitation and a
lot of lightning... also these type of storms are capable of producing gusty winds. Storms should
progressively become more wet Tuesday and Wednesday. Thunderstorm threat will mostly end
later Wednesday night as the low moves farther away and onshore flow increases.
Precautionary/preparedness actions...
A red flag warning means that critical fire weather conditions are either occurring now...
or are expected.
Please advise the appropriate officials or fire crews in the field of this red flag warning.
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