Fire Weather Outlook Discussion
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241
FNUS22 KWNS 261750
FWDDY2

Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1250 PM CDT Tue Sep 26 2017

Valid 271200Z - 281200Z

Previous forecast is on track and no changes are needed. See
discussion below for more details.

..Leitman.. 09/26/2017

.PREV DISCUSSION... /ISSUED 0247 AM CDT Tue Sep 26 2017/

...Synopsis...
An upper-level low forecast to be located over the lower CO River
Valley will begin to move northeast Wednesday, bringing weaker mid-
to upper-level flow of 20-25 kt over much of CA. Surface high
pressure should remain present over portions of the Pacific
Northwest and Great Basin regions.

...Portions of Southern CA...
Elevated fire-weather conditions will persist into Wednesday across
portions of southern California. The surface pressure gradient will
likely be strongest Wednesday morning before the upper-level low
begins to move out of the region. Wind speeds around 15-20 mph will
be possible Wednesday morning, with gusts to 30 mph in the
mountains/foothills, along with RH values between 10-15% and dry
fuels. Locally critical fire-weather conditions are again possible,
but appear too brief/isolated to warrant the inclusion of a critical
area at this time. Wind speeds should diminish throughout the
afternoon and evening. Elevated fire-weather conditions may occur
again early Thursday morning in response to the redeveloping surface
pressure gradient.

...Please see www.spc.noaa.gov/fire for graphic product...

$$



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