WWCN11 CWTO 110619

YELLOW WARNING - SNOW SQUALL

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 1:19 A.M. EST THURSDAY 11 DECEMBER 2025.

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YELLOW LEVEL WARNING - SNOW SQUALL - FOR:

      OWEN SOUND - BLUE MOUNTAINS - NORTHERN GREY COUNTY.



YELLOW LEVEL WARNING - SNOW SQUALL - ENDED FOR:

      SHELBURNE - MANSFIELD - NORTHERN DUFFERIN COUNTY.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



SNOW SQUALLS CONTINUING THROUGH THURSDAY NIGHT. 



WHAT: 

TOTAL LOCAL SNOWFALL AMOUNTS OF 15 TO 30 CM. 

SIGNIFICANTLY REDUCED VISIBILITY IN HEAVY SNOW AND LOCAL BLOWING 

SNOW. 



WHEN: 

CONTINUING THROUGH THURSDAY NIGHT. 



WHERE: 

LOCATIONS NEAR GEORGIAN BAY FROM THORNBURY TO BLUE MOUNTAIN. 



ADDITIONAL INFORMATION: 

SNOW SQUALLS ARE EXPECTED TO PERSIST THROUGH THURSDAY NIGHT BEFORE 

TAPERING TO LAKE EFFECT FLURRIES.



TRAVEL WILL LIKELY BE HAZARDOUS. VISIBILITY WILL LIKELY BE SUDDENLY 

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



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