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Day 2 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0152 PM CST Fri Jan 10 2025

Valid 111200Z - 121200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SOUTHERN CA...

...20z Update...
As the initial strong offshore winds over southern CA fade into
early D2/Saturday, a brief lull in fire-weather activity is expected
before another surge of offshore flow develops overnight into early
D3/Sunday. Moderate offshore pressure gradients of 2-4 mb are
expected to bolster winds across parts of Santa Barbra and
LA/Ventura Counties through the overnight hours. While RH is not
expected to be as low initially and overnight (15-25%), strong gusts
of 20-40 mph through the terrain-favored locations in the western LA
Basin and across Orange County are likely to support several hours
of elevated to critical fire-weather concerns from late D2/Saturday
into early D3/Sunday morning. Strong gusts and critical fire-weather
concerns will likely continue through much of D3/Sunday. The
Elevated area was expanded and a Critical area was added over the
higher terrain and gap areas in coordination with LOX and SGX.

..Lyons.. 01/10/2025

.PREV DISCUSSION... /ISSUED 0141 AM CST Fri Jan 10 2025/

...Synopsis...
A mid-level trough will rapidly traverse the West Coast as another
upper trough impinges on the Mississippi Valley tomorrow (Saturday).
A surface low will move across the Midwest in tandem with the
Mississippi Valley upper trough, with secondary surface low
development likely over the southern High Plains. Downslope flow is
likely over eastern New Mexico into western Texas. However,
questions remain regarding how low RH will dip by afternoon peak
heating, precluding fire weather highlights this outlook. 

An upper trough traversing the West Coast will encourage some dry
offshore flow across southern California. Though guidance differs on
how dry the surface airmass will be, sustained offshore wind speeds
may exceed 15 mph, especially in terrain-favored areas, warranting
Elevated highlights.

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