WUCN12 CWTO 121259

YELLOW WARNING - SEVERE THUNDERSTORM

FOR NORTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 8:59 A.M. EDT SUNDAY 12 JULY 2026.

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YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - FOR:

      GERALDTON - LONGLAC - CARAMAT.



YELLOW LEVEL WARNING - SEVERE THUNDERSTORM - ENDED FOR:

      NAKINA - AROLAND - PAGWA.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



UPDATED OR ENDED BY 10:57 A.M. EDT.



AT 8:58 A.M. EDT, ENVIRONMENT CANADA METEOROLOGISTS ARE TRACKING A 

SEVERE THUNDERSTORM CAPABLE OF PRODUCING STRONG WIND GUSTS, LOONIE 

TO PING PONG BALL SIZE HAIL AND HEAVY RAIN.



THUNDERSTORM LOCATION: 

25 KM NORTH OF GERALDTON 



MOTION: MOVING SOUTHEAST AT 55 KM/H 



HAZARDS: 

HAIL: LOONIE TO PING PONG BALL SIZE (2.5 TO 4.5 CM) 

RAIN: HEAVY (15 - 50 MM) 



LOCATIONS IN THE PATH: 

NAKINA MORAINE PROVINCIAL PARK, BURROWS LAKE, TREPTOW LAKE, SHACABAC 

LAKE, LONGLAC, CASTLEBAR LAKE



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 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 X USING (HASH)ONSTORM. 



FOR MORE INFORMATION: 

HTTPS://WWW.ONTARIO.CA/PAGE/BE-PREPARED-EMERGENCY.



HTTP://WEATHER.GC.CA



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