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WWCN11 CWTO 091825
SEVERE THUNDERSTORM WATCH
FOR SOUTHERN ONTARIO
ISSUED BY ENVIRONMENT CANADA
AT 2:25 P.M. EDT WEDNESDAY 9 JULY 2025.
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SEVERE THUNDERSTORM WATCH FOR:
=NEW= HURON - PERTH
=NEW= MOUNT FOREST - ARTHUR - NORTHERN WELLINGTON COUNTY
=NEW= GREY - BRUCE.
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==DISCUSSION==
CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE
THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING LARGE HAIL AND HEAVY
RAIN.
HAZARDS:
HEAVY RAINFALL WITH RAINFALL RATES BETWEEN 30 AND 50 MM PER HOUR
WIND GUSTS UP TO 70 KM/H
HAIL UP TO 2 CM IN DIAMETER
WHEN:
THIS AFTERNOON INTO THIS EVENING.
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.
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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