539  
WUCN12 CWTO 062350  
YELLOW WARNING - SEVERE THUNDERSTORM  
FOR NORTHERN ONTARIO  
UPDATED BY ENVIRONMENT CANADA  
AT 7:50 P.M. EDT THURSDAY 6 AUGUST 2026.  
---------------------------------------------------------------------  
YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:  
EAR FALLS - PERRAULT FALLS - WESTERN LAC SEUL  
SIOUX LOOKOUT - EASTERN LAC SEUL.  
 
---------------------------------------------------------------------  
IMPACT LEVEL: MODERATE  
FORECAST CONFIDENCE: HIGH  
 
==DISCUSSION==  
 
UPDATED OR ENDED BY 8:18 P.M. CDT.  
 
AT 6:49 P.M. CDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A  
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING STRONG WIND GUSTS,  
UP TO QUARTER SIZE HAIL AND HEAVY RAIN.  
 
THUNDERSTORM LOCATION:  
FROM 20 KM NORTHWEST OF SUNLIGHT LAKE TO 15 KM EAST OF PERRAULT  
FALLS  
 
MOTION:  
MOVING EAST AT 50 KM/H  
 
HAZARDS:  
WIND: UP TO 90 KM/H  
LOCALLY HEAVY RAINFALL  
 
LOCATIONS IN THE PATH:  
SUNLIGHT LAKE, LAC SEUL, KEJICK BAY  
 
DRIVING CONDITIONS WILL LIKELY BE DIFFICULT. LOCAL UTILITY OUTAGES  
ARE LIKELY. DAMAGE TO ROOFS, FENCES, SOFT SHELTERS OR TREES IS  
LIKELY. LARGE HAIL MAY CAUSE SIGNIFICANT DAMAGE AND INJURY. THERE IS  
A RISK OF INJURY. TAKE IMMEDIATE COVER IF A THUNDERSTORM APPROACHES.  
IF OUTSIDE, PROTECT YOURSELF FROM FLYING DEBRIS AND HAIL.  
 
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES.  
 
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, 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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