660
WWCN11 CWTO 092212
YELLOW WATCH - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 6:12 P.M. EDT SATURDAY 9 MAY 2026.
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YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - FOR:
SIMCOE - DELHI - NORFOLK
DUNNVILLE - CALEDONIA - HALDIMAND
NIAGARA
CITY OF HAMILTON.
YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - ENDED FOR:
BRANTFORD - COUNTY OF BRANT.
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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 AND
LARGE HAIL.
WHAT:
STRONG WINDS GUSTING UP TO 90 KM/H
UP TO NICKEL SIZED HAIL
WHEN:
THIS EVENING.
LOCAL UTILITY OUTAGES ARE POSSIBLE. WHEN THUNDER ROARS, GO
INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND INJURES CANADIANS
EVERY YEAR. SECURE LOOSE OBJECTS. 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
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