617
WUCN11 CWTO 192327
RED WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 7:27 P.M. EDT TUESDAY 19 MAY 2026.
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RED LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
DUNNVILLE - CALEDONIA - HALDIMAND
NIAGARA.
RED LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:
CITY OF HAMILTON.
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IMPACT LEVEL: EXTREME
FORECAST CONFIDENCE: VERY HIGH
==DISCUSSION==
UPDATED OR ENDED BY 9:25 P.M. EDT.
AT 7:26 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING AN
EXTREMELY DANGEROUS THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE
WIND GUSTS.
THUNDERSTORM LOCATION: GRASSIE TO JAMES N. ALLAN PROVINCIAL PARK
MOTION: MOVING QUICKLY TO THE EAST AT 90 KM/H
HAZARDS:
WIND: DESTRUCTIVE (130+ KM/H)
RISK OF TORNADO
HAIL: UP TO QUARTER SIZE (UP TO 2.5 CM)
LOCATIONS IN THE PATH:
CAYUGA
DUNNVILLE
BEAMSVILLE
VINELAND
ST. CATHARINES
WELLAND THOROLD
PORT COLBORNE NIAGARA FALLS
FORT ERIE
SEVERE THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING
THUNDERSTORMS ARE EXPECTED TO PRODUCE 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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