602
FNUS21 KWNS 240657
FWDDY1
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0157 AM CDT MON AUG 24 2026
VALID 241200Z - 251200Z
..SYNOPSIS
A SUBTLE/LOW-AMPLITUDE MIDLEVEL WAVE WILL MOVE NORTHEASTWARD ACROSS
PARTS OF THE NORTHERN GREAT BASIN TODAY. FARTHER SOUTH, A SEPARATE
SHORTWAVE TROUGH WILL TRACK SOUTHEASTWARD ACROSS THE
CENTRAL/SOUTHERN PLAINS -- ALONG THE NORTHEASTERN PERIPHERY OF AN
EXPANSIVE UPPER RIDGE CENTERED ON THE SOUTHERN ROCKIES. IN RESPONSE
TO THIS FEATURE, A SURFACE LOW WILL EVOLVE SLOWLY EASTWARD ACROSS
PARTS OF OK.
..DRY THUNDERSTORMS - NORTHERN GREAT BASIN
DIURNAL HEATING/BOUNDARY-LAYER MIXING BENEATH A WELL-ESTABLISHED
MIDLEVEL MOISTURE PLUME WILL CONTRIBUTE TO WEAK SURFACE-BASED
DESTABILIZATION ACROSS PARTS OF THE NORTHERN GREAT BASIN TODAY. AS
LARGE-SCALE FORCING FOR ASCENT ACCOMPANYING THE MIDLEVEL WAVE
OVERSPREADS THIS INSTABILITY, ISOLATED HIGH-BASED THUNDERSTORMS WILL
TRACK NORTHEASTWARD ACROSS THE AREA. THE DEEPLY MIXED BOUNDARY LAYER
(INVERTED-V PROFILES) AND 25-30 MPH STORM MOTIONS WILL FAVOR DRY
THUNDERSTORMS CAPABLE OF LIGHTNING-INDUCED IGNITIONS -- GIVEN
RECEPTIVE FUELS.
..SOUTHERN PLAINS
ALONG/BEHIND THE EVOLVING SURFACE LOW, A DRY AIR MASS (15-20 PERCENT
RH) WILL DEVELOP AMID 15-20 MPH SUSTAINED WEST-SOUTHWESTERLY SURFACE
WINDS. THESE DRY/BREEZY CONDITIONS ATOP INCREASINGLY DRY FUELS
(95TH+ PERCENTILE ERCS) WILL YIELD ELEVATED FIRE-WEATHER CONDITIONS
DURING THE LATE MORNING AND AFTERNOON.
..WEINMAN.. 08/24/2026
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
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