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Day 1 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0157 AM CST Wed Dec 18 2024

Valid 181200Z - 191200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF LOS ANGELES AND
VENTURA COUNTIES IN SOUTHERN CALIFORNIA...

...Synopsis...
Mid-level ridging over the western US is forecast to intensify
through the forecast period, as the overall flow pattern amplifies.
Surface high pressure over the Great Basin will continue to build,
supporting offshore flow across parts of southern CA. Santa Ana
winds, in co*bination with low RH values, should allow for several
hours of elevated to critical fire-weather conditions across
southern CA. 

...Southern CA...
High pressure in the Great Basin will drive offshore winds across
parts of southern California early this morning, continuing through
the afternoon. With the offshore pressure gradient remaining fairly
strong (-4 to -6 mb) through the first half of the day, gusts of
40-50 mph through the terrain-favored corridors and on ridge tops
are expected. Several hours of critical fire weather conditions are
likely across portions of Los Angeles and Ventura Counties, with RH
values below 15%. Winds are expected to slowly diminish during the
evening and overnight as the pressure gradient weakens into early
D2/Thur.

..Lyons.. 12/18/2024

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