895
FNUS22 KWNS 261941
FWDDY2
DAY 2 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0240 PM CDT THU JUN 26 2025
VALID 271200Z - 281200Z
ELEVATED TO LOCALLY CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED
ACROSS CENTRAL AND SOUTHWEST WYOMING FRIDAY. A BROAD INCREASE IN
WESTERLY WINDS AT MID-LEVELS IN COMBINATION WITH A DRY BOUNDARY
LAYER WILL SUPPORT AN OVERLAP OF 15-20 MPH SURFACE WINDS AND
RELATIVE HUMIDITY OF 10-15 PERCENT FRIDAY AFTERNOON. FUELS REMAIN
DRIER WEST OF THE CONTINENTAL DIVIDE OWING TO RAINFALL DEFICITS BUT
HEIGHTENED WEST-SOUTHWEST WINDS SHOULD BE ENOUGH TO POSE AT LEAST A
BROAD ELEVATED FIRE WEATHER THREAT ACROSS CENTRAL WYOMING.
OTHERWISE, FORECAST (SEE BELOW) REMAINS ON TRACK WITH NO SIGNIFICANT
CHANGES TO ELEVATED HIGHLIGHTS.
..WILLIAMS.. 06/26/2025
PREV DISCUSSION
/ISSUED 1249 AM CDT THU JUN 26 2025/
..SYNOPSIS
ELEVATED FIRE WEATHER CONDITIONS ARE EXPECTED ACROSS PARTS OF
CENTRAL TO SOUTHWEST WYOMING FRIDAY AFTERNOON. STRENGTHENING ZONAL
FLOW OVER THE NORTHERN ROCKIES WILL PROMOTE A MORE PRONOUNCED
SURFACE MASS RESPONSE ACROSS THE NORTHERN HIGH PLAINS ON FRIDAY
COMPARED TO TODAY/THURSDAY. CONSEQUENTLY, LOW-LEVEL WINDS WILL
LIKELY BE SLIGHTLY STRONGER ACROSS A BROAD SWATH OF THE EASTERN
GREAT BASIN AND PARTS OF THE FOUR CORNERS REGION. IN GENERAL, MOST
LOCATIONS FROM EASTERN NV INTO NORTHERN AZ, UT, SOUTHERN ID, AND WY
WILL SEE BREEZY CONDITIONS WITH WIND SPEEDS GENERALLY IN THE MID
TEENS. ACROSS SOUTHWEST TO CENTRAL WY, DOWNSLOPE FLOW INTO THE WY
BASIN AND IN THE LEE OF THE WIND RIVER RANGE WILL REGIONALLY AUGMENT
SURFACE WINDS TO NEAR 20 MPH. DEEP MIXING WILL PROMOTE FREQUENT
GUSTS UP TO 25-30 MPH BY PEAK HEATING AS RH VALUES FALL INTO THE
TEENS. SEVERAL HOURS OF ELEVATED CONDITIONS APPEAR LIKELY, AND
PERIODS OF CRITICAL CONDITIONS ARE POSSIBLE. FUELS ACROSS MUCH OF WY
ARE NOT AS DRY COMPARED TO LOCATIONS SOUTHWEST, BUT SEVERAL HOURS OF
DRY/WINDY CONDITIONS SHOULD PROMOTE ADEQUATE DRYING OF DEAD FINER
FUELS TO SUPPORT THE FIRE WEATHER CONCERN. AN EXPANSION OF THE
ELEVATED RISK AREA APPEARS POSSIBLE IF CONFIDENCE IN
SUSTAINED/WIDESPREAD 15+ MPH WINDS INCREASES ACROSS PORTIONS OF THE
GREAT BASIN/FOUR CORNERS REGION WHERE FUELS REMAIN VERY DRY.
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
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