876
FNUS21 KWNS 101537
FWDDY1
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1037 AM CDT WED JUN 10 2026
VALID 101700Z - 111200Z
...CRITICAL FIRE WEATHER AREA FOR EAST-CENTRAL WYOMING AND FAR
NORTHWEST NEBRASKA...
NO CHANGES WERE MADE TO THE DRAWN AREA. SATELLITE IMAGERY SHOWS
MOSTLY SUNNY SKIES ACROSS MUCH OF BOTH ELEVATED AREAS THIS MORNING.
ONLY A FEW MID-LEVEL CLOUDS EXIST OVER EASTERN PORTIONS OF CO AND WY
WHICH ARE NOT EXPECTED TO AFFECT THE FORECAST TODAY. SURFACE
OBSERVATIONS OVER THE HIGH TERRAIN OF CENTRAL CO AND THE PLAINS OF
WY ALREADY SHOW STRONG WESTERLY WINDS SUSTAINED ABOVE 15-20 MPH IN
FAVORED AREAS. RHS ARE ALSO HOVERING AROUND 20-35% OVER MUCH OF THE
SAME REGION. THUS, SURFACE CONDITIONS REMAIN IN AGREEMENT WITH THE
LATEST FORECAST GUIDANCE AND NO CHANGES ARE NECESSARY.
SIGNIFICANT FIRE GROWTH OCCURRED YESTERDAY AND LAST NIGHT ON THE
SOUTH FORK FIRE, WHICH IS AGAIN INCLUDED IN THE EASTERN EXTENT OF
THE HIGHLIGHTED CRITICAL AREA TODAY. RELIEF IN THE FORM OF WELL
BELOW NORMAL TEMPERATURES WILL BE ON THE WAY OVER THE NEXT FEW DAYS.
..STEARNS.. 06/10/2026
PREV DISCUSSION
/ISSUED 1234 AM CDT WED JUN 10 2026/
..SYNOPSIS
AN ELONGATED UPPER TROUGH WILL EXTEND FROM THE PACIFIC NORTHWEST TO
THE UPPER MIDWEST WITH AN ATTENDANT 60-80 KT JET ACROSS THE ROCKIES,
AIDING IN SURFACE LOW DEVELOPMENT OVER EASTERN CO/WESTERN KS.
AMPLIFIED WESTERLY FLOW ALOFT AND SURFACE TROUGHING WILL ENHANCE
WINDY CONDITIONS AMID A DRY AIRMASS ACROSS THE GREAT BASIN INTO THE
CENTRAL PLAINS, CONTINUING WIDESPREAD FIRE CONCERNS AS FUELS
APPROACH CRITICAL THRESHOLDS. AT THE BASE OF THE EXITING UPPER
TROUGH, DEEP NORTHERLY FLOW WILL PROMOTE DRY AND BREEZY CONDITIONS
INTO THE SACRAMENTO VALLEY WHERE DRY FINE FUELS EXIST.
..EASTERN GREAT BASIN, COLORADO PLATEAU AND CENTRAL HIGH PLAINS
STRONG WESTERLY SURFACE WINDS IN THE WAKE OF A COLD FRONT BENEATH
PRONOUNCED MID-LEVEL FLOW WILL CONTINUE FIRE WEATHER CONCERNS ACROSS
PORTIONS OF THE CENTRAL PLAINS TODAY. WEST WINDS OF 25-30 MPH AND RH
AS LOW AS 15% WILL ALIGN WITH POCKETS OF DRY FUELS, MAINTAINING A
CRITICAL FIRE WEATHER THREAT IN EASTERN WY AND FAR NORTHWESTERN NE.
WEAKER, BUT STILL IMPACTFUL WESTERLY FLOW WILL SUPPORT ELEVATED FIRE
WEATHER CONDITIONS IN THE EASTERN GREAT BASIN AND FOUR CORNERS
REGIONS AS WESTERLY 10-15 MPH WINDS AND RH VALUES OF 10-15% OVERLAP
DRY FUELS. ACROSS PORTIONS OF SOUTHEAST UT, A FAIRLY SMALL CORRIDOR
MAY EXPERIENCE LOCALIZED AREAS OF BRIEFLY CRITICAL WINDS
(WEST-SOUTHWESTERLY AT 15-25 MPH) AMIDST WIDESPREAD WARM AND DRY
CONDITIONS.
..SACRAMENTO VALLEY
DRY, POST-FRONTAL NORTHERLY FLOW FUNNELING INTO THE SACRAMENTO
VALLEY WILL PROMOTE AN ELEVATED FIRE WEATHER THREAT TO THE REGION
AND ADJACENT VALLEY FOOTHILLS. SUSTAINED NORTHERLY WINDS OF 10-15
MPH (LOCALLY UP TO 20 MPH) AND RH AT OR BELOW 15% ARE EXPECTED TO
COALESCE AMID RECEPTIVE FUELS TO SUPPORT FIRE SPREAD. DRY AND BREEZY
CONDITIONS WILL PERSIST INTO THE OVERNIGHT HOURS, LEADING TO AN
EXTENDED BURNING PERIOD AND CONTINUED FIRE WEATHER CONCERNS ON DAY
2/THURSDAY.
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
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