834
FNUS22 KWNS 021954
FWDDY2
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0253 PM CDT THU OCT 02 2025
VALID 031200Z - 041200Z
..NORTHERN HIGH PLAINS AND BLACK HILLS AREA
ENHANCED SOUTHWESTERLY DEEP LAYER FLOW AHEAD OF AN UPPER-LEVEL
TROUGH ACROSS THE WESTERN U.S. ALONG WITH A DEEPENING LEE CYCLONE IN
THE WESTERN DAKOTAS WILL SUPPORT INCREASING WINDS ACROSS THE
INTERMOUNTAIN WEST AND MUCH OF THE CENTRAL AND NORTHERN PLAINS
FRIDAY. THE MORE PRONOUNCED FIRE WEATHER ENVIRONMENT, AMPLIFIED BY A
DRY, DOWNSLOPE FLOW LEE OF THE ROCKIES, SHOULD OCCUR ACROSS
NORTHEASTERN WY, WESTERN SD AND FAR SOUTHEASTERN MT. SOUTHWEST WINDS
OF 15-25 MPH, RH FALLING TO AS LOW AS 15% AND NEAR RECORD HIGH
TEMPERATURES IN THE LOWER 90S WILL OVERLAP WITH A FUELSCAPE
CHARACTERIZED BY 90TH PERCENTILE ERC VALUES OR HIGHER AND CURING
FINE FUELS. FARTHER EAST, A BROAD SWATH OF STEADY SOUTHERLY WINDS
WILL BE PRESENT ACROSS MUCH OF THE GREAT PLAINS AND UPPER MIDWEST,
BUT HIGHER RELATIVE HUMIDITY AND A SLIGHTLY LESS RECEPTIVE FUEL
STATUS WILL SUBDUE THE OVERALL FIRE WEATHER THREAT.
..WILLIAMS.. 10/02/2025
PREV DISCUSSION
/ISSUED 0102 AM CDT THU OCT 02 2025/
..SYNOPSIS
REGIONAL FIRE WEATHER CONCERNS ARE EXPECTED ACROSS PORTIONS OF THE
CENTRAL/NORTHERN HIGH PLAINS ON FRIDAY. AN UPPER TROUGH CURRENTLY
APPROACHING THE WEST COAST IS EXPECTED TO INTENSIFY AS IT SHIFTS
EAST INTO THE GREAT BASIN OVER THE NEXT 48 HOURS. IN RESPONSE, LEE
CYCLOGENESIS IS EXPECTED ACROSS THE WESTERN DAKOTAS WITH AN
ATTENDANT INCREASE IN WINDS ACROSS MUCH OF THE INTERMOUNTAIN WEST
AND GREAT PLAINS. WINDS WILL LIKELY BE STRONGER FRIDAY COMPARED TO
PREVIOUS DAYS WITH MOST GUIDANCE DEPICTING WIDESPREAD SUSTAINED
WINDS BETWEEN 15-25 MPH FROM SOUTHERN UT TO NORTHEAST WY AND ACROSS
THE CENTRAL PLAINS. ADDITIONALLY, DOWNSLOPE FLOW OFF THE EASTERN
SLOPES OF THE ROCKIES WILL PROMOTE RH REDUCTIONS INTO THE TEENS FROM
NORTHEAST NM TO EASTERN WY/THE WESTERN DAKOTAS WHILE DIURNAL MIXING
OVER THE CENTRAL/SOUTHERN PLAINS MAY SUPPORT AREAS OF 20-30% RH
MINIMUMS. ALTHOUGH SOMEWHAT WIDESPREAD ELEVATED CONDITIONS ARE
POSSIBLE, THE BEST OVERLAP OF DRY/WINDY CONDITIONS WITH RECEPTIVE
FUELS WILL LIKELY RESIDE ACROSS PORTIONS OF NORTHEAST WY INTO
ADJACENT PORTIONS OF MT, ND, AND SD WHERE GRASSES HAVE BEEN CURING
AFTER SEVERAL DAYS OF DRY AND BREEZY CONDITIONS.
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
CLICK HERE TO GO TO PREVIOUS BULLETINS.
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