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Day 2 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0159 AM CDT Wed Aug 03 2022

Valid 041200Z - 051200Z

...CRITICAL FIRE WEATHER AREA FOR NORTH-CENTRAL MONTANA...

...Synopsis...
Along the northern periphery of a large-scale ridge centered over
the Four Corners, a midlevel trough and strong west-southwesterly
flow aloft will overspread the Pacific Northwest and northern
Rockies/adjacent High Plains during peak heating. At the surface,
low pressure will evolve eastward from AB into SK, while a trailing
cold front moves across the northern Rockies. 

...Northern Rockies and adjacent High Plains...
Along the southern periphery of the surface low, a swath of 20-25
mph sustained westerly surface winds are expected across parts of
north-central MT. These strong winds, coupled with a
hot/deeply-mixed boundary layer (10-15 percent minimum RH) will lead
to critical fire-weather conditions. In addition, mixed wet-dry
thunderstorms should spread eastward across the northern Rockies,
acco*panied by locally strong outflow winds. While isolated
lightning-induced ignitions are possible with this activity,
coverage may be too isolated for highlights. 

...Pacific Northwest...
Deep boundary-layer mixing into the strong westerly flow aloft and
downslope warming/drying in the lee of the Cascades will result in
15-20 mph sustained westerly surface winds and 15-20 percent RH.
Given receptive fuels from WA into OR, elevated to locally critical
conditions can be expected.

..Weinman.. 08/03/2022

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