WWCN11 CWTO 121826

ORANGE WATCH - SNOW SQUALL

FOR SOUTHERN ONTARIO

ISSUED BY ENVIRONMENT CANADA

AT 1:26 P.M. EST FRIDAY 12 DECEMBER 2025.

---------------------------------------------------------------------

ORANGE LEVEL WATCH - SNOW SQUALL - FOR:

=NEW= PARRY SOUND - MUSKOKA.



---------------------------------------------------------------------

IMPACT LEVEL: HIGH

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



INTENSE SNOW SQUALLS EXPECTED OFF GEORGIAN BAY SATURDAY. 



WHAT: 

SNOWFALL ACCUMULATIONS OF 20 TO 40 CM. LOCALLY HIGHER AMOUNTS 

POSSIBLE. 

POOR VISIBILITY IN AREAS OF HEAVY SNOW AND BLOWING SNOW. 

PEAK SNOWFALL RATES OF 5 TO 10 CM PER HOUR. 



WHEN: 

BEGINNING TONIGHT OR SATURDAY MORNING, AND ENDING SATURDAY NIGHT. 



ADDITIONAL INFORMATION: 

LAKE EFFECT SNOW SQUALLS ARE EXPECTED TO DEVELOP TONIGHT NEAR 

GEORGIAN BAY, AND FURTHER INTENSIFY SATURDAY MORNING. IT IS POSSIBLE 

THAT A VERY INTENSE SNOW BAND WILL AFFECT PORTIONS OF THE AREA 

DURING THE DAY SATURDAY. IF THIS BAND BECOMES STATIONARY, AMOUNTS IN 

EXCESS OF 40 CM WILL BE POSSIBLE. 



WESTERLY WINDS GUSTING UP TO 50 KM/H WILL CREATE AREAS OF BLOWING 

SNOW, FURTHER REDUCING VISIBILITY. 



THE LAKE EFFECT ACTIVITY IS EXPECTED TO SHIFT SOUTH OF THE AREA 

SATURDAY NIGHT AS WINDS BECOME MORE NORTHERLY.



TRAVEL MAY BE EXTREMELY HAZARDOUS. VISIBILITY MAY BE SUDDENLY 

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

RESCHEDULING TRAVEL AND OUTDOOR ACTIVITIES. 



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