501
FNUS21 KWNS 040653
FWDDY1

Day 1 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0152 AM CDT Fri Jul 04 2025

Valid 041200Z - 051200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF SOUTHEASTERN NEVADA
AND SOUTHWESTERN UTAH...

...Synopsis...
A mid-level ridge will remain in place across the central CONUS,
with various shortwave troughs traversing the periphery. One such
trough is expected to move across portions of the Great Basin,
providing a focus for fire weather concerns through the day.
Scattered thunderstorms are expected across portions of southeastern
Oregon, where surface moisture will be sufficient for conditional
instability to develop. In this environment, inverted-V
thermodynamic profiles, low precipitable water, and strong
deep-layer shear suggest the potential for dry thunderstorms. Fuels
in the region have not received much rainfall recently and therefore
should be receptive to lightning ignitions.

Farther south across portions of the Great Basin, strong mixing is
expected to promote RH in the 5-15% range with strong winds. A
Critical area has been maintained across portions of southeast
Nevada and southwestern Utah, where a corridor of enhanced surface
winds is expected in association with a mid-level jet. This region
also has the best overlap with dry fuels.

..Supinie.. 07/04/2025

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

$$