657
WWCN11 CWTO 092105
YELLOW WATCH - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 5:05 P.M. EDT SATURDAY 9 MAY 2026.
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YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - FOR:
=NEW= NIAGARA
=NEW= CITY OF HAMILTON
CHATHAM-KENT - RONDEAU PARK
ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY
SIMCOE - DELHI - NORFOLK
DUNNVILLE - CALEDONIA - HALDIMAND
BRANTFORD - COUNTY OF BRANT.
YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - ENDED FOR:
WINDSOR - LEAMINGTON - ESSEX COUNTY
RODNEY - SHEDDEN - WESTERN ELGIN COUNTY
LONDON - MIDDLESEX.
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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
NICKEL TO PING PONG BALL SIZED HAIL
RISK OF A TORNADO
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. 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 X USING (HASH)ONSTORM.
FOR MORE INFORMATION:
HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.
HTTP://WEATHER.GC.CA
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