620
WWCN11 CWTO 291616
YELLOW WARNING - SNOW SQUALL
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 11:16 A.M. EST MONDAY 29 DECEMBER 2025.
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YELLOW LEVEL WARNING - SNOW SQUALL - FOR:
=NEW= CHATHAM-KENT - RONDEAU PARK
=NEW= SARNIA - PETROLIA - WESTERN LAMBTON COUNTY
WATFORD - PINERY PARK - EASTERN LAMBTON COUNTY
STRATHROY - KOMOKA - WESTERN MIDDLESEX COUNTY
ORANGEVILLE - GRAND VALLEY - SOUTHERN DUFFERIN COUNTY
SHELBURNE - MANSFIELD - NORTHERN DUFFERIN COUNTY
PETERBOROUGH - KAWARTHA LAKES
BRACEBRIDGE - GRAVENHURST
HALIBURTON - MINDEN - SOUTHERN HALIBURTON COUNTY.
YELLOW LEVEL WARNING - SNOW SQUALL - REPLACES YELLOW LEVEL WATCH -
SNOW SQUALL - FOR:
SARNIA - PETROLIA - WESTERN LAMBTON COUNTY.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
BRIEF, INTENSE SNOWFALL AND BLOWING SNOW EXPECTED.
WHAT:
NEAR ZERO VISIBILITY IN HEAVY SNOW AND BLOWING SNOW.
SNOWFALL AMOUNTS UP TO 5 CM WITHIN ONE HOUR.
WHEN:
LATE THIS MORNING OR THIS AFTERNOON.
ADDITIONAL INFORMATION:
A SHARP COLD FRONT IS EXPECTED TO TRACK OVER THE AREA. ALONG THIS
COLD FRONT A SUDDEN INTENSE SNOWFALL IS EXPECTED. A QUICK 5 CM OF
SNOW IS POSSIBLE FROM THIS SNOW SQUALL AS WELL AS A RAPID
TEMPERATURE DROP, LEADING TO ICY SURFACES. POOR VISIBILITY IN
BLOWING SNOW IS LIKELY AS STRONG NORTHWESTERLY WIND GUSTS ARE
EXPECTED.
TRAVEL WILL LIKELY BE HAZARDOUS. 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
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