771  
WUCN12 CWTO 081711  
YELLOW WARNING - SEVERE THUNDERSTORM  
FOR NORTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 1:11 P.M. EDT SATURDAY 8 AUGUST 2026.  
---------------------------------------------------------------------  
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:  
WEST NIPISSING - FRENCH RIVER.  
 
---------------------------------------------------------------------  
IMPACT LEVEL: MODERATE  
FORECAST CONFIDENCE: HIGH  
 
==DISCUSSION==  
 
UPDATED OR ENDED BY 3:09 P.M. EDT.  
 
AT 1:10 P.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A  
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WIND GUSTS, UP TO  
QUARTER SIZE HAIL AND HEAVY RAIN.  
 
THUNDERSTORM LOCATION:  
NEAR MARTEN RIVER PROVINCIAL PARK  
 
MOTION: MOVING EAST AT 35 KM/H  
 
HAZARDS:  
WIND: DAMAGING (90 - 110 KM/H)  
HAIL: UP TO QUARTER SIZE (UP TO 2.5 CM)  
 
LOCATIONS IN THE PATH:  
MARTEN RIVER PROVINCIAL PARK  
KENNY FOREST PROVINCIAL PARK  
 
LOCAL UTILITY OUTAGES ARE LIKELY. DAMAGE TO ROOFS, FENCES, SOFT  
SHELTERS OR TREES IS LIKELY. LARGE HAIL MAY CAUSE SIGNIFICANT DAMAGE  
AND INJURY. TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES. IF  
OUTSIDE, PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL.  
 
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 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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