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Day 1 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0213 AM CST Tue Dec 17 2024

Valid 171200Z - 181200Z

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

...Synopsis...
Quasi-zonal mid-level flow is expected to quickly amplify as ridging
develops over the western US today and tonight. Surface high
pressure will quickly build over the Great Basin as a cold front
moves eastward across the central US. The high pressure will allow
for moderate offshore winds and a much drier air mass to move into
portions of southern CA. The strong winds and low humidity will
support elevated to critical fire-weather concerns over portions of
southern CA.

...Southern California...
Offshore winds are expected to develop this afternoon and intensify
this evening, as high pressure builds over the Great Basin.
Northeast surface winds of 25-35 mph are likely through the Santa
Clara River Valley and Oxnard Plain by late this evening and into
early D2/Wed. The intensifying downslope winds and the arrival of
drier air overnight should allow for several hours of 10-15% RH
across southern California. The overlap of low RH and strong winds
should support several hours of elevated to critical fire-weather
conditions across parts of Los Angeles and Ventura Counties.

..Lyons.. 12/17/2024

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