107
FNUS22 KWNS 041849
FWDDY2

Day 2 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0149 PM CDT Thu Jun 04 2026

Valid 051200Z - 061200Z

The Elevated area over portions of the Southwest and Great Basin was
expanded to the south to include much of southern AZ and more of
southeast CA. Hot surface temperatures, leading to a deeply mixed
boundary layer, and very dry air (down to single digit RHs) during
peak heating over this region will combine with a tightened surface
pressure gradient. This will yield Elevated weather conditions via
sustained westerly winds of 10-20 mph during much of the afternoon.
Additionally, the burn periods continue to lengthen over this region
as RHs will struggle to recover during the overnight periods.

..Stearns.. 06/04/2026

.PREV DISCUSSION... /ISSUED 1129 PM CDT Wed Jun 03 2026/

...Synopsis...
A robust upper-level trough will approach the Northwest Coast on Day
2/Friday, increasing mid-level southwesterly flow across the Great
Basin. Weaker deep-layer flow will persist over the Southwest where
a very dry airmass exists. Several perturbations embedded within
zonal flow across the northern Plains and Upper Midwest will
continue chances for precipitation, meanwhile surface high pressure
over the Southeast will promote dry conditions and above normal
temperatures.

A warm and dry airmass will linger into Day 2/Friday across the
Great Basin and Southwest. Latest guidance depicts weaker flow aloft
portions of the Southwest, however, very low daytime RH near 10%
(localized single digits) amid 10-20 mph terrain-driven winds will
support a fire weather threat across northwest Arizona, southeastern
Nevada, and southwestern Utah. Elevated highlights have been
introduced where aforesaid weather conditions will overlap a region
of receptive fuels (broad 80-90th percentile ERCs).

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

$$