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FNUS22 KWNS 270712

FWDDY2



Day 2 Fire Weather Outlook  

NWS Storm Prediction Center Norman OK

0212 AM CDT Sat Mar 27 2021



Valid 281200Z - 291200Z



...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL/EASTERN MT

INTO WESTERN ND/NORTHWEST SD...



...Synopsis...

An upper trough is forecast to move eastward and amplify over the

Northwest and northern Rockies on Sunday, as the downstream upper

trough moves quickly eastward to the Eastern seaboard by Monday

morning. At the surface, a cyclone will deepen in the lee of the

Canadian Rockies and begin moving eastward across the Canadian

Prairies by Sunday evening. 



...Montana into the western Dakotas...

Strengthening westerly flow will spread across most of MT into the

western Dakotas on Sunday, in advance of the approaching upper

trough and to the south of the deepening surface cyclone, with

sustained winds of 15-25 mph (with higher gusts) expected by

afternoon. Guidance shows the typical spread with respect to the

magnitude of mixing/drying within this regime, but generally agrees

that RH values will fall into the 15-30% range as temperatures

increase into the 60s F. These conditions will result in relatively

large area of elevated fire weather conditions. Within this area,

critical conditions will be possible. A critical delineation has

been included where confidence is currently highest in meeting

wind/RH criteria, though some expansion of this area is certainly

possible in subsequent outlooks.



..Dean.. 03/27/2021



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



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