Storm Prediction Center Day 2 Fire Weather Outlook
Created: Fri Jan 10 19:53:03 UTC 2025 (
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Click for Day 2 FireWX Areal Outline Product (KWNSPFWFD2)
ZCZC SPCFWDDY2 ALL FNUS22 KWNS 101952 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...