774  
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  
 
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