021  
WWCN12 CWTO 110220  
SEVERE THUNDERSTORM WATCH  
FOR NORTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 10:20 P.M. EDT THURSDAY 10 JULY 2025.  
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SEVERE THUNDERSTORM WATCH FOR:  
KENORA - GRASSY NARROWS - WHITEDOG  
RED LAKE - EAR FALLS  
SIOUX LOOKOUT - EASTERN LAC SEUL.  
 
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==DISCUSSION==  
 
CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE  
THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING STRONG WIND GUSTS,  
LARGE HAIL AND HEAVY RAIN.  
 
HAZARDS:  
WIND GUSTS UP TO 100 KM/H  
UP TO PING PONG BALL SIZE HAIL  
 
WHEN:  
THIS EVENING.  
 
WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND  
INJURES CANADIANS EVERY YEAR.  
 
STRONG WIND GUSTS CAN DAMAGE TREES, BUILDINGS AND OVERTURN VEHICLES.  
 
SEVERE THUNDERSTORM WATCHES ARE ISSUED WHEN CONDITIONS ARE  
FAVOURABLE FOR THE DEVELOPMENT OF THUNDERSTORMS CAPABLE OF PRODUCING  
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, 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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