Fire Weather Outlook Discussion
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065
FNUS21 KWNS 200549
FWDDY1

Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
1248 AM CDT Sun Jul 20 2025

Valid 201200Z - 211200Z

...Synopsis...
An upper-level trough will begin to sag into northern California and
the northern Great Basin today. A surface trough will develop from
the Northwest into the central Great Basin.

Elevated to locally critical conditions are possible from northern
Nevada into the Snake River Plain and western Wyoming. RH will be
lowest in Nevada where 10-20% is expected. Farther north and east,
15-20% will be more common. Surface wind speeds will generally range
from 15-20 mph in most locations. With some terrain enhancement in
the Snake River Plain, there is some potential for briefly stronger
winds. This location has a greater probability for sustained
critical conditions, though ensemble guidance continues to suggest
it will remain quite localized.

..Wendt.. 07/20/2025

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

$$