Fire Weather Outlook Discussion
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000
FNUS21 KWNS 170712
FWDDY1

Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0111 AM CST Sun Dec 17 2017

Valid 171200Z - 181200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHERN AND CENTRAL
CA...
...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SOUTHERN CA...

...Synopsis...
...Portions of Central into Northern CA this Morning...

Strong north to northeast winds were ongoing as of 07z, and a few
hours of critical fire weather conditions are possible through about
midday. RH values in the 15-25 percent range will be common with
sustained wind speeds around 15-25 mph and higher gusts. Deep-layer
northerly flow will weaken through the day and conditions should
improve by afternoon. Overnight recovery will be good, with RH
values rebounding to around 40 percent or greater.

...Portions of Southern CA...

Gusty winds were ongoing this morning and should continue into at
least this evening. Strong deep-layer northerly flow will persist
longer across the southern portion of the state as the upper trough
only slowly progresses eastward. The surface pressure gradient
across the region is forecast to remain favorable for moderate to
strong offshore winds through at least this evening but could
stretch into early Monday morning. Sustained winds of 15-30 mph with
higher gusts are expected. RH values of 15-25 percent early this
morning will fall to around 10-15 percent during the afternoon.
Overnight recovery should be better tonight compared to recent days,
with values climbing into the 25-45 percent range and even higher
values near the coast.

..Leitman.. 12/17/2017

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

$$



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