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FNUS21 KWNS 200702

FWDDY1



Day 1 Fire Weather Outlook  

NWS Storm Prediction Center Norman OK

0102 AM CST Sat Feb 20 2021



Valid 201200Z - 211200Z



...NO CRITICAL AREAS...



...Synopsis...

A mid-level trough will deepen while traversing the southwest CONUS,

with an 80+ knot 500 mb jet streak expected to overspread the Lower

Colorado River Basin into the southern High Plains during the

afternoon hours. The surface mass response will be the development

of a surface cyclone which will eject into the southern High Plains

by early evening. Gradient winds, downslope flow, and downward

momentum transport of the stronger flow aloft via a dry, well-mixed

boundary layer will serve to promote widespread 20+ mph sustained

westerly winds across portions of the lower Colorado River Basin

into the southern High Plains. By afternoon peak heating, several

locales across the Southwest may also see surface RH drop into the

15-20% range. While the surface meteorological conditions are

expected to reach Elevated to potentially Critical criteria

(especially in southern Arizona and New Mexico), fuels poorly

receptive to wildfire spread mitigate the need for fire weather

highlights.



..Squitieri.. 02/20/2021



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



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