546  
WUCN11 CWTO 021744  
YELLOW WARNING - SEVERE THUNDERSTORM  
FOR SOUTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 1:44 P.M. EDT WEDNESDAY 2 SEPTEMBER 2026.  
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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:  
=NEW= ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY  
LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY  
WOODSTOCK - TILLSONBURG - OXFORD COUNTY.  
 
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IMPACT LEVEL: MODERATE  
FORECAST CONFIDENCE: HIGH  
 
==DISCUSSION==  
 
UPDATED OR ENDED BY 2:42 P.M. EDT.  
 
AT 1:43 P.M. EDT, A SEVERE THUNDERSTORM IS LOCATED OVER  
ILDERTON. THIS SEVERE THUNDERSTORM IS MOVING SOUTHEAST AT 45  
KM/H. STRONG WIND GUSTS AND LOONIE TO PING PONG BALL SIZE HAIL ARE  
POSSIBLE.  
 
LOCATIONS AND NEARBY AREAS THAT COULD BE IMPACTED INCLUDE: ILDERTON,  
ETTRICK, LONDON, THORNDALE, THAMESFORD, INGERSOLL  
 
TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF OUTSIDE,  
PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL.  
 
SEVERE THUNDERSTORM WARNINGS ARE ISSUED WHEN IMMINENT OR OCCURRING  
THUNDERSTORMS ARE EXPECTED TO PRODUCE DAMAGING HAIL, WIND OR RAIN.  
 
LARGE HAIL MAY CAUSE SIGNIFICANT DAMAGE AND INJURY.  
 
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 SOCIAL MEDIA USING  
(HASH)ONSTORM.  
 
FOR MORE INFORMATION:  
HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.  
 
HTTP://WEATHER.GC.CA  
 
END/OSPC  
 
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