536
ACUS11 KWNS 110021
SWOMCD
SPC MCD 110021
MIZ000-INZ000-ILZ000-WIZ000-IAZ000-110145-
MESOSCALE DISCUSSION 0196
NWS STORM PREDICTION CENTER NORMAN OK
0721 PM CDT TUE MAR 10 2026
AREAS AFFECTED...EASTERN IOWA NORTHERN ILLINOIS FAR SOUTHERN
WISCONSIN INTO SOUTHERN LOWER MICHIGAN
CONCERNING...SEVERE THUNDERSTORM WATCH 35...
VALID 110021Z - 110145Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 35
CONTINUES.
SUMMARY...NUMEROUS SUPERCELLS WILL REMAIN CAPABLE OF SIGNIFICANT
HAIL THIS EVENING. DAMAGING GUSTS MAY ALSO BE POSSIBLE AS STORMS
CONGLOMERATE TONIGHT.
DISCUSSION...AS OF 0015 UTC, REGIONAL RADAR IMAGERY SHOWED NUMEROUS
THUNDERSTORMS ONGOING ALONG AND NORTH OF THE WARM FRONTAL ZONE INTO
PARTS OF IA/IL/WI AND MI. MOST OF THESE STORMS ARE ON THE COOL SIDE
OF THE BOUNDARY AND WILL REMAIN SO THIS EVENING. ROBUST MUCAPE
(1000-2000J/KG) AND STRONG DEEP-LAYER SHEAR WILL CONTINUE TO SUPPORT
STRONG SUPERCELLS OVER MUCH OF WW35.
GIVEN THE DEGREE OF BUOYANCY LARGE HAIL IS LIKELY. ISOLATED VERY
LARGE HAIL IS ALSO POSSIBLE WITH MORE INTENSE CLUSTER OF SUPERCELLS
ON THE IMMEDIATE COOL SIDE OF THE WARM FRONT IN NORTHERN IL AS WELL.
WITH TIME, UPSCALE GROWTH INTO SMALL BOWING SEGMENTS WITH SOME
POTENTIAL FOR DAMAGING GUSTS IS EXPECTED TONIGHT. THE SEVERE RISK
SHOULD CONTINUE TO INCREASE OVER MUCH OF WW35 THIS EVENING. WW35 HAS
BEEN LOCALLY EXTENDED FARTHER EAST ACROSS PORTIONS OF THE GRR CWA.
..LYONS.. 03/11/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...DTX...IWX...GRR...LOT...ILX...MKX...DVN...ARX...
LAT...LON 41929170 42559109 43228751 43538498 43488451 42118433
42088555 41988617 41838698 41468748 41258850 40998978
41069080 41349154 41929170
MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN
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