WWCN11 CWTO 110202

YELLOW WARNING - SNOW SQUALL

FOR SOUTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 9:02 P.M. EST WEDNESDAY 10 DECEMBER 2025.

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YELLOW LEVEL WARNING - SNOW SQUALL - FOR:

=NEW= WOODSTOCK - TILLSONBURG - OXFORD COUNTY

      LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY.



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

SNOW SQUALL - FOR:

      WOODSTOCK - TILLSONBURG - OXFORD COUNTY.



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IMPACT LEVEL: HIGH

FORECAST CONFIDENCE: MODERATE



==DISCUSSION==



SNOW SQUALLS ARE EXPECTED TONIGHT THROUGH THURSDAY. 



WHAT: 

TOTAL LOCAL SNOWFALL AMOUNTS OF 15 TO 30 CM. 

SIGNIFICANTLY REDUCED VISIBILITY IN HEAVY SNOW AND LOCAL BLOWING 

SNOW. 



WHEN: 

TONIGHT THROUGH THURSDAY. 



ADDITIONAL INFORMATION: 

SNOW SQUALLS ARE EXPECTED TO TRACK NORTHEASTWARD TO ALSO AFFECT THE 

WOODSTOCK AREA BY EARLY THURSDAY MORNING. 



SNOW SQUALLS ARE EXPECTED TO PERSIST THROUGH THURSDAY BEFORE 

TAPERING TO LAKE EFFECT FLURRIES THURSDAY NIGHT. SNOWFALL AMOUNTS 

WILL BE HIGHLY VARIABLE ACROSS THE AREA.



TRAVEL MAY BE EXTREMELY HAZARDOUS. VISIBILITY MAY 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