Day 1 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
1247 AM CDT Thu May 28 2026

Valid 281200Z - 291200Z

...Synopsis...
A high amplitude blocking pattern will continue as an upper low
remains centered over the western CONUS with downstream ridging
across the northern High Plains/Upper Midwest. The main trough axis
will gradually lift into the central Plains while moisture advection
occurs ahead of the upper low, encouraging additional chances for
precipitation across the central CONUS. As upper troughing pushes
down the Eastern Seaboard, a cold front is expected to progress
southward through the Mid-Atlantic, bringing below-normal
temperatures and more opportunities for spotty precipitation.

...Great Basin and Southwest...
An upper-level low anchored over the Sierra Nevada and corresponding
surface low over western ID will bolster dry and breezy southerly
flow across portions of the Great Basin and Southwest this
afternoon. South winds of 15-25 mph, RH values of 15-20% (as low as
10% in valleys), and dry/cured fuels in lower elevations will
support Elevated to locally critical fire weather concerns across
portions of AZ and far western NM into the eastern Great Basin and
CO Western Slope.

...Northeastern Montana...
Surface troughing extending across the northern High Plains into the
Northern Rockies and surface high pressure over the Great Lakes
region will reinforce dry southeasterly flow atop recently receptive
fuels in northeastern MT. Elevated fire weather conditions are
expected as daytime relative humidity declines to around 20% and
southeasterly sustained winds increase to 15-25 mph.

..Elizalde-Garcia.. 05/28/2026

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