495
FNUS21 KWNS 171650
FWDDY1
DAY 1 FIRE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1150 AM CDT WED SEP 17 2025
VALID 171700Z - 181200Z
..NO CRITICAL AREAS
..17Z UPDATE
NO CHANGES. INITIAL THUNDERSTORM ACTIVITY OBSERVED AHEAD OF THE
MOISTURE SURGE ASSOCIATED WITH THE REMNANTS OF TROPICAL STORM MARIO
MAY POSE A BRIEF RISK FOR LIGHTNING IGNITIONS ACROSS PORTIONS OF
SOUTHERN CA THIS AFTERNOON AND EVENING. HOWEVER, PWATS SHOULD
RAPIDLY INCREASE ABOVE 1.5 INCHES WITH A HIGH LIKELIHOOD OF WETTING
RAINFALL. ADDITIONALLY, AREA FUELS ARE LESS RECEPTIVE OWING TO THE
INCREASE IN RH, SUGGESTING ONLY A BRIEF/LOCALIZED RISK FOR
IGNITIONS. SEE THE PRIOR DISCUSSION.
..LYONS.. 09/17/2025
PREV DISCUSSION
/ISSUED 0157 AM CDT WED SEP 17 2025/
..SYNOPSIS
A MID-LEVEL TROUGH WILL MEANDER OVER THE ROCKIES WHILE ANOTHER UPPER
TROUGH IMPINGES ON THE WEST COAST AND UPPER RIDGING PERSISTS OVER
THE MISSISSIPPI VALLEY TODAY. SURFACE HIGH PRESSURE WILL BECOME
ESTABLISHED OVER THE ROCKIES, PROMOTING RELATIVELY QUIESCENT FIRE
WEATHER CONDITIONS OVER THE INTERIOR WEST. MEANWHILE, A DRY
LOW-LEVEL AIRMASS WILL CONTINUE TO LINGER OVER THE OHIO VALLEY,
WHERE FUELS HAVE BEEN GRADUALLY DRYING. SURFACE WINDS APPEAR TOO
WEAK TO SUPPORT WIDESPREAD, SIGNIFICANT WILDFIRE GROWTH POTENTIAL,
THOUGH LOCALIZED WILDFIRE CONDITIONS ARE A CONCERN WHERE STRONGER
GUSTS MAY OVERSPREAD DRY FUEL BEDS.
..PLEASE SEE WWW.SPC.NOAA.GOV/FIRE FOR GRAPHIC PRODUCT
CLICK HERE TO GO TO PREVIOUS BULLETINS.
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