WUCN11 CWTO 092003
YELLOW WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 4:03 P.M. EDT THURSDAY 9 JULY 2026.
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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
      ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY
      SIMCOE - DELHI - NORFOLK
      DUNNVILLE - CALEDONIA - HALDIMAND
      OXFORD - BRANT.

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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

UPDATED OR ENDED BY 6:01 P.M. EDT.

AT 4:02 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A 
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING STRONG WIND GUSTS 
AND HEAVY RAIN.

THUNDERSTORM LOCATION: 
15 KM NORTHEAST OF WILSONVILLE TO NEW SARUM 

MOTION: 
MOVING EAST AT 55 KM/H 

HAZARDS: 
WIND: STRONG (UP TO 90 KM/H) 
TORRENTIAL DOWNPOURS 

LOCATIONS IN THE PATH: 
DELHI 
HAGERSVILLE 
HALDIMAND COUNTY 
SIMCOE 
CAYUGA 
PORT DOVER

DAMAGE TO ROOFS, FENCES, SOFT SHELTERS OR TREES IS LIKELY. HEAVY 
RAIN MAY CAUSE FLASH FLOODING AND SIGNIFICANT REDUCTIONS TO 
VISIBILITY. 

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