WWCN12 CWTO 180140

YELLOW WATCH - SEVERE THUNDERSTORM

FOR NORTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 9:40 P.M. EDT FRIDAY 17 JULY 2026.

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YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - FOR:

      UPSALA - RAITH

      GULL BAY - BLACK STURGEON LAKE.



YELLOW LEVEL WATCH - SEVERE THUNDERSTORM - ENDED FOR:

      SAVANT LAKE - STURGEON LAKE

      ARMSTRONG - AUDEN - WABAKIMI PARK.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



CONDITIONS ARE FAVOURABLE FOR THE DEVELOPMENT OF SEVERE 

THUNDERSTORMS THAT MAY BE CAPABLE OF PRODUCING STRONG WIND GUSTS AND 

LARGE HAIL.



WHAT: 

WIND GUSTS UP TO 90 KM/H. 

QUARTER TO PING PONG BALL SIZED HAIL. 



WHEN: 

THIS EVENING.



LOCAL UTILITY OUTAGES ARE POSSIBLE. DAMAGE TO ROOFS, FENCES, 

BRANCHES OR SOFT SHELTERS IS POSSIBLE. THERE IS A RISK OF INJURY. 

WHEN THUNDER ROARS, GO INDOORS(EXCLAMATION MARK) LIGHTNING KILLS AND 

INJURES CANADIANS EVERY YEAR. 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