434 

FNUS22 KWNS 050654

FWDDY2



Day 2 Fire Weather Outlook  

NWS Storm Prediction Center Norman OK

0154 AM CDT Fri Jun 05 2026



Valid 061200Z - 071200Z



...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE GREAT BASIN AND

SOUTHWEST...



...Synopsis...

The upper trough over the Northwest is forecast to deepen and

intensify as it spread eastward into the Northern Rockies and

southern Canada Saturday. A belt of stronger mid-level flow will

move southeastward, overspreading a dry and hot air mass over much

of the western US. This will promote widespread elevated and

critical fire-weather conditions atop dry fuels from the Great basin

to the Southwest.



...Great Basin, Intermountain West and the Southwest...

As the upper trough over the Northwest/northern Rockies intensifies,

a belt of stronger flow will overspread the hot and dry surface

conditions across the Western US. The mid-level jet max will aid in

efficient mixing of strong winds to the surface. Sustained southwest

winds of 20 to 30 mph are anticipated. With continued poor overnight

recoveries, RH values in the single digits and low teens are

expected on a widespread basis. Sustained critical fire weather

conditions are expected across portions of eastern NV, southern UT,

and northern AZ.



Weaker flow aloft farther south and east will still promote

widespread elevated conditions with 10-20% RH and surface gusts of

15-20 mph. Potentially enhanced by local terrain across southern AZ

into the Four Corners, some potential for brief critical conditions

may develop given drying fuels and increasing burn period duration.



...ID and Northern Rockies...

Ascent from the upper trough will impinge on the western edge of

surface moisture moving westward into the higher terrain. This

ascent and diurnal heating could support isolated thunderstorm

development across southern and eastern ID. Likely high-based, these

fast-moving storms would have limited precipitation efficiency.

Isolated dry lightning strikes would be possible. Currently,

convection appears more likely farther northeast where moisture is

more robust.



..Lyons.. 06/05/2026



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



$$