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Day 1 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0141 AM CDT Fri Aug 19 2022

Valid 191200Z - 201200Z

...Synopsis...
An upper-level shortwave trough evident on water vapor imagery this
morning near the California-Oregon-Nevada border is forecast to
shift slowly eastward and weaken throughout the day. Concurrently,
an axis of monsoonal moisture (PW values around 1") extending
northward from Arizona will also shift eastward into western Utah
and southern Idaho.  Consequently, clouds and precipitation are
likely early in the day along this axis.  On the northeastern
periphery of this moisture axis across portions of central Idaho and
southwestern Montana, sufficient heating and destabilization will
likely lead to scattered thunderstorm development in the afternoon
over the higher terrain.  Despite borderline environmental
characteristics for dry thunderstorms (i.e., PW values around 0.75"
and surface RH values around 30%), numerous CG lightning flashes are
expected over dry fuels with limited rainfall accumulation expected
outside of thunderstorm cores.  Thus, an isolated dry thunderstorm
area has been delineated to highlight this fire-weather concern.

..Jirak.. 08/19/2022

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