725
FNUS28 KWNS 162201
FWDD38

Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0459 PM CDT Mon Jun 16 2025

Valid 181200Z - 241200Z

...Day 3/Wednesday...
An upper-level short wave with attendant mid-level wind maxima will
promote breezy downslope/gap winds to the Columbia Basin where dry
fuels remain supportive of fire spread. Meanwhile, a broad ridge
axis roughly aligned along the Continental Divide will support above
normal temperatures for much of the West aiding in drying fuels
ahead of a stronger upper-level trough for the latter part of the
week.

...Day 4-6/Thursday-Saturday...
A potent upper-level trough and attendant stronger mid-level flow
will impact the western U.S. beginning on Day 4/Thursday introducing
a broad fire weather threat into the Great Basin and portions of the
Southwest. Considerable southwest surface winds of 20-30 mph and
very low relative humidity will coincide with dry fuels to promote
wildfire spread (including potential expansion of existing wildfire
footprints) across the region. Critical probabilities were added to
northwestern Nevada as well as southeastern Nevada and southwest
Utah. Primary fire weather threat expands eastward into Utah and
western Colorado on Day 5/Friday as upper-level trough shifts/nudges
eastward. Model guidance consensus suggests a deceleration of
eastward advancement of main trough axis by Day 6/Saturday, allowing
enhanced mid-level flow to remain over portions of the Four Corners
and Southwest into the weekend, while the Pacific Northwest
experiences some relief with cooler temperatures and some rainfall.
In addition, dry post-frontal winds should increase the fire weather
threat across the California Central Valley where a Critical 40
percent probability area has been maintained.

...Day 7-8/Sunday-Monday...
The multi-day fire weather event could linger into early next week
around the Four Corners region as a troughing pattern persists
across the Western U.S. However, decreasing mid-level flow as the
upper-level trough diffuses should limit magnitude of winds although
dry conditions and warm temperatures are still a high likelihood.

..Williams.. 06/16/2025

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

$$