WWCN11 CWTO 031109 YELLOW WATCH - SEVERE THUNDERSTORM FOR SOUTHERN ONTARIO UPDATED BY ENVIRONMENT CANADA AT 7:09 A.M. EDT FRIDAY 3 JULY 2026. --------------------------------------------------------------------- YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - FOR: STRATFORD - MITCHELL - SOUTHERN PERTH COUNTY LISTOWEL - MILVERTON - NORTHERN PERTH COUNTY KITCHENER - CAMBRIDGE - REGION OF WATERLOO. YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - ENDED FOR: GODERICH - BLUEWATER - SOUTHERN HURON COUNTY. --------------------------------------------------------------------- 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 AND LARGE HAIL. WHAT: WIND GUSTS UP TO 90 KM/H. UP TO QUARTER SIZE HAIL. WHEN: EARLY THIS MORNING. ADDITIONAL INFORMATION: A SMALL CLUSTER OF THUNDERSTORMS IS MOVING EAST AT 50 KM/H THIS MORNING DAMAGE TO ROOFS, FENCES, BRANCHES OR SOFT SHELTERS IS POSSIBLE. WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND INJURES CANADIANS EVERY YEAR. STRONG WIND GUSTS CAN DAMAGE TREES, BUILDINGS AND OVERTURN VEHICLES. 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 END/OSPC