WUCN11 CWTO 021843

YELLOW WARNING - SEVERE THUNDERSTORM

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 2:43 P.M. EDT WEDNESDAY 2 SEPTEMBER 2026.

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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

      CITY OF TORONTO

      MISSISSAUGA - BRAMPTON

      CALEDON

      VAUGHAN - RICHMOND HILL - MARKHAM

      NEWMARKET - GEORGINA - NORTHERN YORK REGION.



YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:

      INNISFIL - NEW TECUMSETH - ANGUS.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 3:10 P.M. EDT.



AT 2:41 P.M. EDT, A SEVERE THUNDERSTORM IS LOCATED NEAR BOLTON. THIS 

SEVERE THUNDERSTORM IS MOVING EAST AT 55 KM/H. DAMAGING WIND GUSTS, 

LOONIE TO PING PONG BALL SIZE HAIL AND HEAVY RAIN ARE POSSIBLE. 



LOCATIONS AND NEARBY AREAS THAT COULD BE IMPACTED INCLUDE: CEDAR 

MILLS, BOLTON, LLOYDTOWN, SCHOMBERG, NOBLETON, POTTAGEVILLE, 

KLEINBURG, WOODBRIDGE, KING CITY, VAUGHAN



TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE, 

PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL. 



SEVERE THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING 

THUNDERSTORMS ARE EXPECTED TO PRODUCE DAMAGING HAIL, WIND OR RAIN. 



LOCAL UTILITY OUTAGES ARE LIKELY. DAMAGE TO ROOFS, FENCES, SOFT 

SHELTERS OR TREES IS LIKELY. HEAVY RAIN MAY CAUSE FLASH FLOODING AND 

SIGNIFICANT REDUCTIONS TO VISIBILITY. THERE IS A RISK OF INJURY. 

DON'T DRIVE THROUGH FLOODED ROADWAYS. 



SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES. 



AVOID LOW-LYING AREAS. 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