WWCN11 CWTO 110414

YELLOW WARNING - SNOW SQUALL

FOR SOUTHERN ONTARIO

ISSUED BY ENVIRONMENT CANADA

AT 11:14 P.M. EST WEDNESDAY 10 DECEMBER 2025.

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YELLOW LEVEL WARNING - SNOW SQUALL - FOR:

=NEW= ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY.



YELLOW LEVEL WARNING - SNOW SQUALL - REPLACES YELLOW LEVEL WATCH - 

SNOW SQUALL - FOR:

      ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY.



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IMPACT LEVEL: MODERATE

FORECAST CONFIDENCE: HIGH



==DISCUSSION==



SNOW SQUALLS ARE EXPECTED TONIGHT. 



WHAT: 

TOTAL LOCAL SNOWFALL AMOUNTS OF NEAR 15 CM. 

SIGNIFICANTLY REDUCED VISIBILITY IN HEAVY SNOW AND LOCAL BLOWING 

SNOW. 



WHEN: 

TONIGHT. 



ADDITIONAL INFORMATION: 

SNOW SQUALLS ARE EXPECTED TO TRACK NORTHEAST OF THE AREA BY EARLY 

THURSDAY MORNING. SNOWFALL AMOUNTS WILL BE HIGHLY VARIABLE ACROSS 

THE AREA. 



THERE IS A POSSIBILITY THAT SNOW SQUALLS MAY AFFECT THE AREA ONCE 

AGAIN LATE THURSDAY.



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