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Day 3-8 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0416 PM CDT Sun Sep 01 2024

Valid 031200Z - 091200Z

A midlevel trough and acco*panying midlevel speed max will move
across the northern Rockies on D3/Tue, bringing an increase in
surface winds across portions of Idaho and Wyoming. High pressure
will build in across the western US D4/Wednesday through
D8/Saturday, with a warming and drying trend. As this occurs,
monsoonal moisture will gradually shift southward with drying
conditions extending into the desert Southwest through D7/Friday.
Winds will remain mostly light where fuels are dry, keeping fire
weather concerns low.

...Dry/Windy...
As a midlevel speed max moves across Idaho into Montana D3/Tuesday,
Critical conditions will be likely in the Snake River Plain, where
relative humidity in the teens and sustained westerly winds around
20 mph will overlap critically dry fuels.

Across eastern Wyoming, Elevated to Critical fire weather conditions
will be possible as a surface low deepens and westerly gradients
increase across the Dakotas. Downslope warming and drying will
result in relative humidity reductions into the upper teens to 20s
amid sustained winds at 15-20 mph. A 40 percent delineation was
added with this outlook.

...Isolated Dry Thunderstorms...
Thunderstorm potential will continue across the northern Rockies on
D3/Tuesday, though gradually increasing moisture and precipitation
cast uncertainty on the overall fire-weather risk, which precludes
Isolated Dry Thunderstorm probabilities.

..Thornton.. 09/01/2024

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