WUCN11 CWTO 192143
YELLOW WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 5:43 P.M. EDT TUESDAY 19 MAY 2026.
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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
=NEW= ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY
      WINDSOR - ESSEX - CHATHAM-KENT
      WATFORD - PINERY PARK - EASTERN LAMBTON COUNTY
      RODNEY - SHEDDEN - WESTERN ELGIN COUNTY.

YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:
      SARNIA - PETROLIA - WESTERN LAMBTON COUNTY.

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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

UPDATED OR ENDED BY 7:42 P.M. EDT.

AT 5:43 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: 
INWOOD TO AMHERSTBURG 

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: 
CHATHAM 
CHATHAM-KENT 
LEAMINGTON 
POINT PELEE NATIONAL PARK OF CANADA

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