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Day 1 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0200 AM CDT Fri Jul 29 2022

Valid 291200Z - 301200Z

...Synopsis...
A large-scale ridge will remain centered over the western CONUS,
while a low-amplitude shortwave trough tracks southeastward across
the northern Rockies. Beneath the upper ridge, hot/dry conditions
will result in widespread 10-15 percent minimum RH east of the
Cascades into the northern Rockies. The low RH, coupled with breezy
northerly surface winds over southeast OR, southwest ID, and
northern NV will promote elevated fire-weather conditions during the
afternoon -- especially owing to highly receptive fuels over the
area. 

In addition, large-scale ascent ahead of the shortwave trough and
favorable midlevel moisture/instability will support isolated to
widely scattered high-based thunderstorms over the northern Rockies.
As these storms overspread a hot/dry boundary layer and critically
dry fuels, lightning-induced ignitions will be possible. Farther
west, upslope flow and adequate instability will also support very
isolated high-based thunderstorms along the Cascades in northern CA
into southern OR -- where isolated ignitions remain a concern.

..Weinman.. 07/29/2022

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