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Day 1 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0200 AM CST Wed Nov 06 2024

Valid 061200Z - 071200Z

...EXTREMELY CRITICAL FIRE WEATHER AREA FOR NORTHERN LOS ANGELES AND
SOUTHERN VENTURA COUNTIES...
...CRITICAL FIRE WEATHER AREA FOR MUCH OF SOUTHERN CALIFORNIA...

...Synopsis...
Between a highly amplified large-scale ridge over the West Coast,
and a deep midlevel trough extending from the northern Plains into
the Four Corners, a belt of strong deep-layer northerly flow will
overspread the Great Basin into southern CA. In response, an
expansive surface anticyclone will be reinforced over the
Intermountain West. These factors will yield a strong offshore
pressure gradient and ample upper-level support across southern CA,
leading to a strong Santa Ana wind event.

...Southern California...
From Wednesday morning into Wednesday night, the tightening offshore
pressure gradient (LAX-DAG peaking around -7 to -8 mb), coupled with
the strong deep-layer north-northeasterly flow directed toward the
coast, will favor sustained northeasterly surface winds of 30+ mph
and gusts upwards of 60 mph across much of southern CA. Higher gusts
(70+ mph) are expected over the wind-prone mountains and slopes.
These strong/gusty winds will co*bine with lower teens/single-digit
RH, leading to dangerous fire-weather conditions. The most volatile
and long-duration co*bination of strong winds and low RH over
receptive fuels is expected over the wind-prone Santa Ana corridor
of southern Ventura and northern Los Angeles Counties -- where
Extremely Critical fire-weather conditions are expected.

...Northern/Central California...
The tight pressure gradient peripheral to the strong surface
anticyclone and enhanced deep-layer northerly flow will also favor
strong northerly surface winds amid low RH over the western
Sacramento Valley to the coast. Given modestly receptive fuels
across this region, elevated to locally critical fire-weather
conditions are expected from Wednesday morning into Wednesday night.

..Weinman.. 11/06/2024

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