Storm Prediction Center Day 1 Fire Weather Outlook
Created: Sat Jan 11 16:47:03 UTC 2025 (
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Storm Prediction Center Day 1 Fire Weather Outlook
Created: Sat Jan 11 16:47:03 UTC 2025 (
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Click for Day 1 FireWX Areal Outline Product
ZCZC SPCFWDDY1 ALL
FNUS21 KWNS 111646
Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1046 AM CST Sat Jan 11 2025
Valid 111700Z - 121200Z
...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SOUTHERN CA...
...17z Update...
Minimal changes were made to the prior outlook. A moderate, but
short duration offshore wind event is expected today and tonight.
Currently weak offshore winds observed over parts of southern CA are
expected to increase in coverage/intensity beginning late this
afternoon. Offshore pressure gradients of 2-5 mb will support gusts
of 25-45 mph, mainly overnight into D2/Sunday. Widespread low
humidity (15-20%) will overlap with the strong gusts through
terrain-favored areas of Los Angeles/Ventura into Orange Counties
tonight. This will allow sustained elevated to critical fire-weather
conditions to develop given receptive fuels and ongoing fire
activity.
..Lyons.. 01/11/2025
.PREV DISCUSSION... /ISSUED 0146 AM CST Sat Jan 11 2025/
...Synopsis...
A positively tilted mid-level trough will progress south-southeast
along the West Coast as another mid-level trough amplifies over the
central CONUS today. A surface low will traverse the southern High
Plains while surface high pressure builds over the Interior West. A
pressure gradient will develop over southern California through the
day, encouraging dry offshore conditions. Wind speeds may exceed 20
mph amid 15-20 percent RH in terrain-favoring areas surrounding the
city of Los Angeles, fostering Elevated to Critical wildfire-spread
conditions given dry fuels. Critical conditions are most likely late
tonight into early Sunday morning.
...Please see www.spc.noaa.gov/fire for graphic product...