580
WUCN11 CWTO 122332
YELLOW WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 7:32 P.M. EDT WEDNESDAY 12 AUGUST 2026.
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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
CITY OF TORONTO
BURLINGTON - OAKVILLE
MISSISSAUGA - BRAMPTON.
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:
HALTON HILLS - MILTON.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
UPDATED OR ENDED BY 8:04 P.M. EDT.
AT 7:30 P.M. EDT, AN AREA OF SEVERE THUNDERSTORMS IS LOCATED OVER
MIMICO BEACH. THESE SEVERE THUNDERSTORMS ARE MOVING SOUTHEAST AT 30
KM/H. STRONG WIND GUSTS, UP TO QUARTER SIZE HAIL AND VERY HEAVY RAIN
ARE POSSIBLE.
LOCATIONS AND NEARBY AREAS THAT COULD BE IMPACTED INCLUDE:
MISSISSAUGA, RATTRAY MARSH CONSERVATION AREA, MIMICO BEACH, MIMICO
HARBOUR, SUNNYSIDE BEACH
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.
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES.
LOCAL UTILITY OUTAGES ARE LIKELY.
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
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