WWCN11 CWTO 030129

YELLOW WATCH - SEVERE THUNDERSTORM

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 9:29 P.M. EDT THURSDAY 2 JULY 2026.

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YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - FOR:

      SIMCOE - DELHI - NORFOLK

      DUNNVILLE - CALEDONIA - HALDIMAND

      BRANTFORD - COUNTY OF BRANT

      NIAGARA

      CITY OF HAMILTON.



YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - ENDED FOR:

      ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY

      LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY

      WOODSTOCK - TILLSONBURG - OXFORD COUNTY

      BURLINGTON - OAKVILLE

      GODERICH - BLUEWATER - SOUTHERN HURON COUNTY

      STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY

      KITCHENER - CAMBRIDGE - REGION OF WATERLOO.



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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.



WHAT: 

WIND GUSTS NEAR 90 KM/H. 

UP TO TOONIE SIZED HAIL. 

HEAVY RAIN, POSSIBLY EXCEEDING 30 MM. 



WHEN: 

CONTINUING THIS EVENING. 



ADDITIONAL INFORMATION: 

THUNDERSTORM DEVELOPMENT REMAINS POSSIBLE THIS EVENING. STRONG WIND 

GUSTS, LARGE HAIL AND HEAVY RAIN ARE POSSIBLE.



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. 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 X USING (HASH)ONSTORM. 



FOR MORE INFORMATION: 

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



HTTP://WEATHER.GC.CA



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