072
FNUS21 KWNS 240658
FWDDY1
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0158 AM CDT SUN MAY 24 2026
VALID 241200Z - 251200Z
..NO CRITICAL AREAS
..SYNOPSIS
UPPER-LEVEL TROUGHING WILL TRANSITION EASTWARD ACROSS THE NORTHERN
GREAT LAKES TODAY, WITH WEAK TROUGHING ALSO IN PLACE ACROSS THE
SOUTHERN CALIFORNIA AND THE SOUTHERN PLAINS. SIMULTANEOUSLY,
UPPER-LEVEL RIDGING WILL REMAIN OVER THE EAST COAST AND MUCH OF THE
HIGH PLAINS. AT THE SURFACE, A FRONTAL SYSTEM WILL EXTEND FROM THE
SOUTHERN GREAT PLAINS NORTHEASTWARD INTO THE MIDWEST AND
MID-ATLANTIC, WITH MULTIPLE MID-LEVEL PERTURBATIONS BRINGING CHANCES
FOR WETTING RAINFALL TO MUCH OF THE SOUTH AND THE EASTERN US.
SIMILAR TO SATURDAY, WARM TEMPERATURES UNDER SUBTLE RIDGING WILL
PROMOTE RH REDUCTIONS TO 10-20% ACROSS MUCH OF THE WEST, BUT THE
LACK OF A STRONG SURFACE PRESSURE GRADIENT WILL LARGELY LIMIT
SUSTAINED WIND SPEEDS. THIS WILL PRECLUDE WIDESPREAD FIRE WEATHER
CONCERNS. LOCALLY ELEVATED CONDITIONS MAY STILL BE POSSIBLE IN
FAVORED TERRAIN/GAP AREAS, HOWEVER.
..NORTH-CENTRAL MONTANA
MODEST WESTERLY MID-LEVEL FLOW WILL PROMOTE DEEPENING LEE TROUGHING
ACROSS THE SOUTHERN CANADIAN PRAIRIES AND THE NORTHERN HIGH PLAINS
TODAY, WITH DRY AND BREEZY CONDITIONS EXPECTED ACROSS NORTHERN
MONTANA. SUSTAINED WESTERLY SURFACE WINDS OF 15-20 MPH AND MINIMUM
RH VALUES AS LOW AS 15% WILL PROMOTE LOCALIZED ELEVATED FIRE WEATHER
CONCERNS, MAINLY FOR AREAS WHERE GREEN UP HAS BEEN DELAYED BY
DROUGHT.
..NORTHERN GREAT BASIN INTO SOUTHERN IDAHO
A PLUME OF MODEST MID/UPPER-LEVEL SUBTROPICAL MOISTURE WILL EXTEND
FROM THE SIERRA NEVADA EASTWARD INTO SOUTHERN IDAHO, SOUTHERN
WYOMING, AND THE NORTHERN COLORADO ROCKIES TODAY. DIURNAL HEATING
WILL PROMOTE WEAK BUOYANCY WITHIN THIS MOISTURE CORRIDOR, WHICH WILL
SUBSEQUENTLY SUPPORT ISOLATED HIGH-BASED CONVECTION THIS AFTERNOON.
FUELS AND ONGOING GREEN UP WILL CONTINUE TO LIMIT THE POTENTIAL FOR
DRY LIGHTNING IGNITIONS. THUS, DRY THUNDERSTORM HIGHLIGHTS CONTINUE
TO BE WITHHELD.
..CHALMERS.. 05/24/2026
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
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