WUCN11 CWTO 092037
YELLOW WARNING - SEVERE THUNDERSTORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 4:37 P.M. EDT THURSDAY 9 JULY 2026.
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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:
      SIMCOE - DELHI - NORFOLK
      DUNNVILLE - CALEDONIA - HALDIMAND.

YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:
      OXFORD - BRANT.

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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH

==DISCUSSION==

UPDATED OR ENDED BY 6:35 P.M. EDT.

AT 4:36 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A 
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING STRONG WIND GUSTS 
AND HEAVY RAIN.

THUNDERSTORM LOCATION: 
23 KM EAST OF WILSONVILLE TO TILLSONBURG 

MOTION: 
MOVING EAST AT 55 KM/H 

HAZARDS: 
WIND: STRONG (UP TO 90 KM/H) 
LOCAL RAINFALL AMOUNTS IN EXCESS OF 50 MM 

LOCATIONS IN THE PATH: 
DELHI 
HAGERSVILLE 
SIMCOE 
JARVIS 
CAYUGA 
PORT DOVER 
DUNNVILLE

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