WWCN11 CWTO 120248

YELLOW WARNING - SNOW SQUALL

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 9:48 P.M. EST THURSDAY 11 DECEMBER 2025.

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YELLOW LEVEL WARNING - SNOW SQUALL - FOR:

      INNISFIL - NEW TECUMSETH - ANGUS

      BARRIE - COLLINGWOOD - HILLSDALE.



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IMPACT LEVEL: HIGH

FORECAST CONFIDENCE: MODERATE



==DISCUSSION==



SNOW SQUALLS WEAKENING TONIGHT. 



WHAT: 

ADDITIONAL SNOWFALL AMOUNTS OF 5 TO 10 CM. 

SIGNIFICANTLY REDUCED VISIBILITY IN HEAVY SNOW AND LOCAL BLOWING 

SNOW. 



WHEN: 

TAPERING OFF OVERNIGHT. 



ADDITIONAL INFORMATION: 

SNOW SQUALLS ARE EXPECTED TO WEAKEN THROUGH THE OVERNIGHT. 



NORTHWESTERLY WINDS GUSTING TO NEAR 50 KM/H WILL RESULT IN LOCAL 

BLOWING SNOW FURTHER REDUCING VISIBILITY.



TRAVEL MAY BE EXTREMELY HAZARDOUS. VISIBILITY MAY BE SUDDENLY 

REDUCED TO NEAR ZERO AT TIMES. ROAD CLOSURES ARE POSSIBLE. PREPARE 

FOR QUICKLY CHANGING AND DETERIORATING TRAVEL CONDITIONS. 



PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY 

ENVIRONMENT CANADA. 



TO REPORT SEVERE WEATHER IN ONTARIO, SEND AN EMAIL TO 

ONSTORM(AT)EC.GC.CA OR POST REPORTS ON X USING (HASH)ONSTORM. 



FOR MORE INFORMATION ABOUT THE ALERTING PROGRAM, PLEASE VISIT: 

HTTPS://WWW.CANADA.CA/EN/SERVICES/ENVIRONMENT/WEATHER/SEVEREWEATHER/WEATHER-ALERTS/COLOUR-CODED-ALERTS.



HTTP://WEATHER.GC.CA



END/OSPC