WUCN11 CWTO 020936

YELLOW WARNING - SEVERE THUNDERSTORM

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 5:36 A.M. EDT WEDNESDAY 2 SEPTEMBER 2026.

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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

      ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY

      SIMCOE - DELHI - NORFOLK.



YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:

      RODNEY - SHEDDEN - WESTERN ELGIN COUNTY.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 7:14 A.M. EDT.



AT 5:35 A.M. EDT, AN AREA OF SEVERE THUNDERSTORMS IS LOCATED OVER 

SPARTA. THESE SEVERE THUNDERSTORMS ARE MOVING EAST AT 45 

KM/H. STRONG WIND GUSTS, UP TO QUARTER SIZE HAIL AND HEAVY RAIN ARE 

POSSIBLE. 



LOCATIONS AND NEARBY AREAS THAT COULD BE IMPACTED INCLUDE: PORT 

BRUCE PROVINCIAL PARK, AYLMER, PORT BURWELL PROVINCIAL PARK, PORT 

BURWELL, VIENNA, STRAFFORDVILLE, LANGTON, PORT ROWAN, LONG POINT, 

PORT DOVER



TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE, 

PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL. HEAVY RAIN MAY CAUSE 

FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO VISIBILITY. LARGE HAIL 

MAY CAUSE SIGNIFICANT DAMAGE AND INJURY. 



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 SOCIAL MEDIA USING 

(HASH)ONSTORM. 



FOR MORE INFORMATION: 

HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.



HTTP://WEATHER.GC.CA



END/OSPC