808  
WUCN11 CWTO 192204  
YELLOW WARNING - SEVERE THUNDERSTORM  
FOR SOUTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 6:04 P.M. EDT TUESDAY 19 MAY 2026.  
---------------------------------------------------------------------  
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:  
SHELBURNE - MANSFIELD - NORTHERN DUFFERIN COUNTY  
HANOVER - DUNDALK - SOUTHERN GREY COUNTY  
OWEN SOUND - BLUE MOUNTAINS - NORTHERN GREY COUNTY  
BARRIE - COLLINGWOOD - HILLSDALE.  
 
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IMPACT LEVEL: MODERATE  
FORECAST CONFIDENCE: HIGH  
 
==DISCUSSION==  
 
UPDATED OR ENDED BY 8:02 P.M. EDT.  
 
AT 6:03 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A  
SEVERE THUNDERSTORM CAPABLE OF PRODUCING STRONG WIND GUSTS.  
 
THUNDERSTORM LOCATION: MAXWELL TO HORNING'S MILLS  
 
MOTION: MOVING NORTHEAST AT 65 KM/H  
 
HAZARDS:  
WIND: STRONG (90 KM/H)  
 
LOCATIONS IN THE PATH:  
DUNDALK  
EUGENIA  
NOTTAWA  
STAYNER  
 
LOCAL UTILITY OUTAGES ARE LIKELY. DAMAGE TO ROOFS, FENCES, SOFT  
SHELTERS OR TREES IS LIKELY.  
 
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  
 
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