597
ACUS11 KWNS 172202
SWOMCD
SPC MCD 172201
IAZ000-172330-
MESOSCALE DISCUSSION 2093
NWS STORM PREDICTION CENTER NORMAN OK
0501 PM CDT WED SEP 17 2025
AREAS AFFECTED...PORTIONS OF SOUTHERN INTO CENTRAL IOWA
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 172201Z - 172330Z
PROBABILITY OF WATCH ISSUANCE...5 PERCENT
SUMMARY...A COUPLE OF ADDITIONAL SEVERE GUSTS ARE POSSIBLE OVER THE
NEXT FEW HOURS.
DISCUSSION...AN ORGANIZED MULTICELLULAR CLUSTER HAS DEVELOPED OVER
SOUTHERN IA, WITH A RECENT HISTORY OF PRODUCING AT LEAST ONE
MEASURED SEVERE GUST. THIS CLUSTER IS SHOWING SLIGHT BOWING
TENDENCIES AS IT PROGRESSES THROUGH AN AMBIENT ENVIRONMENT
CHARACTERIZED BY 1000-1500 J/KG MLCAPE. HOWEVER, VERTICAL WIND SHEAR
IS WEAK, AND BUOYANCY DOES DECREASE DOWNSTREAM, LIKELY BECAUSE OF
PRECEDING SHOWERS AND THUNDERSTORMS. AS SUCH, THE SEVERE THREAT
SHOULD REMAIN SPARSE AND LOCALIZED.
..SQUITIERI/KERR.. 09/17/2025
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...DVN...DMX...
LAT...LON 41039416 41559385 41729323 41709269 41419240 41119238
40819244 40689271 40679318 40729387 41039416
MOST PROBABLE PEAK WIND GUST...55-70 MPH
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page