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Day 2 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0139 PM CDT Tue Aug 02 2022

Valid 031200Z - 041200Z

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

The previous forecast remains on track with only minor adjustments
needed to reflect trends in latest guidance. One such adjustment is
an expansion of the Elevated risk area into southeast MT and far
northwest SD where winds near 15 mph and 15-20% RH are expected over
a region with receptive fuels. The Isolated Dry Thunderstorm risk
area is adjusted to highlight the highest potential for
thunderstorms over receptive fuels based on latest fuel guidance.

..Moore.. 08/02/2022

.PREV DISCUSSION... /ISSUED 0201 AM CDT Tue Aug 02 2022/

...Synopsis...
Similar to Day 1/Tuesday, a large-scale ridge will remain in place
over the Great Basin, while a belt of enhanced westerly midlevel
flow overspreads the Pacific Northwest and northern Rockies. Within
the westerly midlevel flow, a shortwave trough and acco*panying
strong flow aloft will move southeastward across the Pacific
Northwest into the northern Rockies. 

...Wind/RH...
Critical fire-weather conditions are once again expected over parts
of northern and central MT during the afternoon, where
boundary-layer mixing into the strong flow aloft will result in a
corridor of 20-25 mph sustained westerly surface winds and 10-15
percent RH. Farther west in the lee of the Cascades in WA into
north-central OR, strong downslope flow will contribute to 10-15
percent RH and 15-20 mph sustained west-southwesterly surface winds.
Given critically dry fuels over this area, elevated to locally
critical conditions can be expected. 

...Dry Thunderstorms...
Along the northern periphery of the monsoonal moisture plume,
diurnal heating and subtle large-scale ascent will support isolated
high-based thunderstorms along the Cascades in OR into northern CA.
Most of these storms will have little accumulating rainfall, and
isolated lightning-induced ignitions will be possible.

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