686
FNUS21 KWNS 060540
FWDDY1
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1239 AM CDT THU AUG 06 2026
VALID 061200Z - 071200Z
..SYNOPSIS
UPPER-LEVEL RIDGING WILL CONTINUE TO EXPAND ACROSS THE WESTERN CONUS
AS AN UPPER LOW TRAVERSES THE CANADIAN PRAIRIES, PERMITTING STRONG
NORTHWESTERLY FLOW TO OVERSPREAD THE NORTHERN PLAINS. AHEAD OF AN
APPROACHING COLD FRONT, DAYTIME HIGH TEMPERATURES WILL REACH 90+
DEGREES F AS RH VALUES QUICKLY DECLINE TO LESS THAN 20% AND
WEST-NORTHWESTERLY WINDS INCREASE TO 15-20 MPH. THE AFOREMENTIONED
COLD FRONT WILL ENTER EASTERN MONTANA BETWEEN 18-00Z, TRANSLATING
SOUTHWARD THROUGH THE EVENING. AS THE FRONT PASSES, WINDS WILL SHIFT
TO BROADLY NORTHERLY AT 15-25 MPH (GUSTS OVER 30 MPH) FOR A FEW
HOURS WHILE RH INCREASES OVERNIGHT. ELEVATED HIGHLIGHTS HAVE BEEN
MAINTAINED ACROSS PORTIONS OF THE COLORADO PLATEAU INTO THE NORTHERN
PLAINS WHERE ERCS WILL RANGE FROM THE 80-95TH PERCENTILE, AND NDVI
PORTRAYS A SIGNIFICANT 30-DAY DECREASE IN LIVE GREEN VEGETATION.
ISOLATED MIXED WET/DRY THUNDERSTORMS ARE POSSIBLE IN PORTIONS OF FAR
SOUTHERN NEVADA AND UTAH INTO NORTHWEST ARIZONA, BUT UNCERTAINTY
REMAINS REGARDING THE NORTHWARD PROGRESSION OF MID-LEVEL MOISTURE.
HOWEVER, GIVEN SUFFICIENT INSTABILITY AND A DRY SUB-CLOUD LAYER, A
LIGHTNING IGNITION CANNOT BE RULED OUT WITH ANY STORM THAT MANAGES
TO DEVELOP. ADDITIONALLY, PROLONGED ABOVE NORMAL TEMPERATURES, A DRY
BOUNDARY LAYER, AND BRIEFLY BREEZY WINDS MAY ENCOURAGE LOCALLY
ELEVATED FIRE CONDITIONS TO EMERGE ACROSS THE CALIFORNIA VALLEYS AND
ADJACENT HIGHER TERRAIN WHERE WIDESPREAD ERCS EXCEED THE 90TH
PERCENTILE.
..ELIZALDE-GARCIA.. 08/06/2026
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
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