954  
WUCN11 CWTO 052308  
SEVERE THUNDERSTORM WARNING  
FOR SOUTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 7:08 P.M. EDT FRIDAY 5 SEPTEMBER 2025.  
---------------------------------------------------------------------  
SEVERE THUNDERSTORM WARNING FOR:  
RENFREW - ARNPRIOR - CALABOGIE.  
 
SEVERE THUNDERSTORM WARNING ENDED FOR:  
SMITHS FALLS - LANARK - SHARBOT LAKE  
BARRY'S BAY - KILLALOE.  
 
---------------------------------------------------------------------  
==DISCUSSION==  
 
UPDATED OR ENDED BY 8:29 P.M. EDT.  
 
AT 7:08 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A  
SEVERE THUNDERSTORM CAPABLE OF PRODUCING STRONG WIND GUSTS.  
 
THIS LINE OF SEVERE THUNDERSTORMS IS LOCATED FROM LOCHWINNOCH TO  
CLYDE LAKE, MOVING NORTHEAST AT 45 KM/H.  
 
HAZARD: UP TO 90 KM/H WIND GUSTS.  
 
LOCATIONS IMPACTED INCLUDE:  
ARNPRIOR, CALABOGIE, SPRINGTOWN, MAYHEW, BURNSTOWN, LOCHWINNOCH,  
WHITE LAKE, SPRUCE HEDGE, GOSHEN, LUNDYS CORNERS, GLASGOW STATION,  
STEWARTVILLE, DEWARS, WABA, CLAY VALLEY, CLAY BANK, PINEGROVE AND  
MANSFIELD.  
 
LOCAL UTILITY OUTAGES ARE LIKELY. DAMAGE TO ROOFS, FENCES, SOFT  
SHELTERS OR TREES IS LIKELY. 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.  
 
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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