WUCN12 CWTO 040414

YELLOW WARNING - SEVERE THUNDERSTORM

FOR NORTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 12:14 A.M. EDT TUESDAY 4 AUGUST 2026.

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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

      IGNACE - ENGLISH RIVER

      SEINE RIVER VILLAGE - MINE CENTRE.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 1:13 A.M. CDT (1:13 A.M. EST).



AT 11:14 P.M. CDT (11:14 P.M. EST), ENVIRONMENT CANADA 

METEOROLOGISTS ARE TRACKING A LINE OF SEVERE THUNDERSTORMS CAPABLE 

OF PRODUCING DAMAGING WIND GUSTS, UP TO QUARTER SIZE HAIL AND HEAVY 

RAIN.



THUNDERSTORM LOCATION: 

65 KM EAST OF ENTWINE LAKE 

35 KM SOUTH OF TURTLE RIVER-WHITE OTTER LAKE PROVINCIAL PARK 



MOTION: MOVING QUICKLY TO THE NORTHEAST AT 70 KM/H 



HAZARDS: 

WIND: DAMAGING (90 - 110 KM/H) 

HAIL: UP TO QUARTER SIZE (UP TO 2.5 CM) 

RAIN: HEAVY (15 - 50 MM) 

RISK OF A TORNADO. 



LOCATIONS IN THE PATH: 

DOVETAIL LAKE 

WHITE OTTER LAKE 

IGNACE 

SANDBAR LAKE PROVINCIAL PARK 

SOWDEN LAKE 

GULLIVER LAKE 

SCOTCH LAKE



LOCAL UTILITY OUTAGES ARE LIKELY. DAMAGE TO ROOFS, FENCES, SOFT 

SHELTERS OR TREES IS LIKELY. HEAVY RAIN MAY CAUSE FLASH FLOODING AND 

SIGNIFICANT REDUCTIONS TO VISIBILITY. LARGE HAIL MAY CAUSE 

SIGNIFICANT DAMAGE AND 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