794 

WWUS20 KWNS 182204

SEL0  

SPC WW 182203

ILZ000-INZ000-MIZ000-OHZ000-LMZ000-182200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH - NUMBER 220 

NWS STORM PREDICTION CENTER NORMAN OK 

603 PM EDT MON MAY 18 2026



THE NWS STORM PREDICTION CENTER HAS CANCELLED 

SEVERE THUNDERSTORM WATCH NUMBER 220 ISSUED AT 1105 AM EDT FOR PORTIONS OF



         ILLINOIS

         INDIANA

         MICHIGAN

         OHIO

         LAKE MICHIGAN








818 

WWUS20 KWNS 182217

SEL1  

SPC WW 182217

MIZ000-LEZ000-LHZ000-LMZ000-190000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH - NUMBER 221 

NWS STORM PREDICTION CENTER NORMAN OK 

617 PM EDT MON MAY 18 2026



THE NWS STORM PREDICTION CENTER HAS CANCELLED 

SEVERE THUNDERSTORM WATCH NUMBER 221 ISSUED AT 100 PM EDT FOR PORTIONS OF



         MICHIGAN

         LAKE ERIE

         LAKE HURON

         LAKE MICHIGAN








833 

WWUS20 KWNS 182240

SEL3  

SPC WW 182240

OHZ000-LEZ000-190100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH - NUMBER 223 

NWS STORM PREDICTION CENTER NORMAN OK 

640 PM EDT MON MAY 18 2026



THE NWS STORM PREDICTION CENTER HAS CANCELLED 

SEVERE THUNDERSTORM WATCH NUMBER 223 ISSUED AT 335 PM EDT FOR PORTIONS OF



         OHIO

         LAKE ERIE