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WWCN11 CWTO 022342
YELLOW WATCH - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 7:42 P.M. EDT WEDNESDAY 2 SEPTEMBER 2026.
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YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - FOR:
SIMCOE - DELHI - NORFOLK
DUNNVILLE - CALEDONIA - HALDIMAND.
ORANGE LEVEL WATCH - SEVERE THUNDERSTORM - ENDED FOR:
CITY OF TORONTO
NIAGARA
MISSISSAUGA - BRAMPTON
CALEDON
YORK - DURHAM
BELLEVILLE - QUINTE - NORTHUMBERLAND
PICTON - SANDBANKS PARK
NAPANEE - CONSECON
LINDSAY - SOUTHERN KAWARTHA LAKES
PETERBOROUGH CITY - LAKEFIELD - SOUTHERN PETERBOROUGH COUNTY.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE
THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING STRONG WIND GUSTS,
LARGE HAIL AND HEAVY RAIN.
HAZARDS:
STRONG WIND GUSTS.
QUARTER TO PING PONG BALL SIZE HAIL.
TORRENTIAL DOWNPOURS WITH LOCAL RAINFALL AMOUNTS UP TO 50
MILLIMETRES.
TIMING:
THIS EVENING.
ADDITIONAL INFORMATION:
THE PRIMARY CONCERN WITH ANY THUNDERSTORMS WILL BE FOR STRONG AND
POTENTIALLY DAMAGING WINDS ALONG WITH LARGE HAIL AND TORRENTIAL
RAIN. THAT BEING SAID, CONDITIONS COULD BECOME FAVOURABLE FOR SOME
THUNDERSTORMS TO BE ABLE TO PRODUCE A TORNADO.
LOCAL UTILITY OUTAGES ARE POSSIBLE. DAMAGE TO ROOFS, FENCES,
BRANCHES OR SOFT SHELTERS IS POSSIBLE. THERE IS A RISK OF INJURY.
WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND
INJURES CANADIANS EVERY YEAR. DON'T DRIVE THROUGH FLOODED ROADWAYS.
HEAVY RAIN CAN CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO
VISIBILITY.
LARGE HAIL CAN CAUSE SIGNIFICANT DAMAGE AND INJURY.
SEVERE THUNDERSTORM WATCHES ARE ISSUED WHEN CONDITIONS ARE
FAVOURABLE FOR THE DEVELOPMENT OF THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING HAIL, WIND OR RAIN.
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
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