665
FNUS28 KWNS 302155
FWDD38

Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0453 PM CDT Mon Jun 30 2025

Valid 021200Z - 081200Z

...Day 3/Wednesday...
An incoming mid-level trough into the Pacific Northwest and
subsequent lee trough deepening across eastern Washington State will
promote stronger onshore flow into the region for Day 3/Wednesday.
Enhanced gap winds into the Columbia Basin and dry, downslope flow
east of the Cascades should support a fire weather threat where dry
fuels exist. A mix of wet/dry thunderstorms are expected across the
higher terrain of eastern Nevada, southwestern/central Utah and
southwestern Wyoming. This fire weather threat is primarily along
the western periphery of deeper monsoon moisture moving into the
greater Four Corners region.

...Days 4-5/Thursday-Friday...
Fire weather concerns will continue to be concentrated across the
portions of the Great Basin and Southwest for the latter part of the
week as another mid-level short wave trough moves into the region.
The thunderstorm threat is also present as the trough interacts with
residual monsoon moisture although considerable timing and amplitude
uncertainty precludes introduction of dry thunderstorm probabilities
for Day 4-5/Thursday-Friday.

...Days 6-8/Saturday-Monday...
An upper-level ridge shifts eastward into the eastern U.S. by the
weekend while a broad, dry southwest flow pattern infiltrates into
western U.S. Monsoon moisture, and general diurnal thunderstorm
development is expected to shift eastward along and east of the
Continental Divide, limiting the dry thunderstorm threat. Timing and
magnitude of mid-level short waves within the overall southwest flow
pattern precludes introduction of critical fire weather
probabilities at this time.

..Williams.. 06/30/2025

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

$$