989
FNUS22 KWNS 151955
FWDDY2

Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0254 PM CDT Sun Jun 15 2025

Valid 161200Z - 171200Z

...CRITICAL FIRE WEATHER AREA FOR PARTS OF SOUTHERN
NEVADA...SOUTHWESTERN UTAH...AND FAR NORTHWESTERN ARIZONA...

...Southern Nevada, Southwestern Utah and far Northwestern
Arizona...
Modest mid-level flow associated with a progressive upper-level
trough will move into the Great Basin and Southwest Monday. A very
dry, well-mixed boundary layer will support low teens to single
digit relative humidity values across the region. A corridor of
20-30 mph winds are most likely from southern Nevada into
south-central Utah where very low daytime humidity will support
Critical fire weather conditions amid dry fuels.

...Columbia Basin...
The upper-level short wave translating through the Pacific Northwest
Monday will contribute to enhanced downslope winds particularly
across the western portions of the Columbia Basin. West winds of
around 15 mph combined with relative humidity in the 15-25 percent
range will result in elevated fire weather concerns for central
Washington state and Columbia River Gorge where ongoing fire
activity remains.

..Williams.. 06/15/2025

.PREV DISCUSSION... /ISSUED 0156 AM CDT Sun Jun 15 2025/

...Synopsis...
During the day on Monday, a mid-level shortwave trough is expected
to traverse California and into the Great Basin, and the surface
mass response to this feature will tighten the sea-level pressure
gradient across the area, resulting in strong surface winds. With
seasonably strong vertical mixing, RH in the Great Basin and Four
Corners region is expected to be around 5-15%. The best overlap of
windy conditions and dry fuels is expected to be across parts of
southeast Nevada, southwest Utah, and far northwest Arizona, where
Critical highlights have been added. In this area, winds are
expected to be near 20-30 mph with gusts as high as 35-40 mph
underneath the core of the mid-level jet associated with the
shortwave trough. Surrounding that Critical area, winds may be
weaker and fuels less receptive to fire spread. However, this still
warrants an Elevated area across parts of the Great Basin and Four
Corners region.

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

$$