847  
WUCN11 CWTO 192318  
YELLOW WARNING - SEVERE THUNDERSTORM  
FOR SOUTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 7:18 P.M. EDT TUESDAY 19 MAY 2026.  
---------------------------------------------------------------------  
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:  
ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY  
SIMCOE - DELHI - NORFOLK.  
 
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:  
WINDSOR - LEAMINGTON - ESSEX COUNTY.  
 
---------------------------------------------------------------------  
IMPACT LEVEL: MODERATE  
FORECAST CONFIDENCE: HIGH  
 
==DISCUSSION==  
 
UPDATED OR ENDED BY 9:16 P.M. EDT.  
 
AT 7:17 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A  
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WIND  
GUSTS AND UP TO QUARTER SIZE HAIL.  
 
THUNDERSTORM LOCATION:  
PORT DOVER TO PELEE ISLAND  
 
MOTION: MOVING QUICKLY TO THE EAST AT 70 KM/H  
 
HAZARDS:  
WIND: DAMAGING (90 - 110 KM/H)  
HAIL: UP TO QUARTER SIZE (UP TO 2.5 CM)  
 
LOCATIONS IN THE PATH:  
PORT STANLEY  
TILLSONBURG  
OTTERVILLE  
ERIEAU  
DELHI  
VIENNA  
PORT BURWELL  
SIMCOE  
PORT DOVER  
PORT ROWAN  
 
LOCAL UTILITY OUTAGES ARE LIKELY. DAMAGE TO ROOFS, FENCES, SOFT  
SHELTERS OR TREES IS LIKELY. TAKE IMMEDIATE COVER IF A THUNDERSTORM  
APPROACHES. IF OUTSIDE, PROTECT YOURSELF FROM FLYING DEBRIS AND  
HAIL. WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING  
KILLS AND INJURES CANADIANS EVERY YEAR.  
 
EMERGENCY MANAGEMENT ONTARIO RECOMMENDS THAT YOU TAKE COVER  
IMMEDIATELY IF THREATENING WEATHER APPROACHES.  
 
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY  
ENVIRONMENT CANADA.  
 
TO REPORT SEVERE WEATHER IN ONTARIO, SEND AN EMAIL TO  
ONSTORM(AT)EC.GC.CA OR POST REPORTS ON X USING (HASH)ONSTORM.  
 
FOR MORE INFORMATION:  
HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.  
 
HTTP://WEATHER.GC.CA  
 
END/OSPC  
 
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