004
WWCN12 CWTO 271016
YELLOW WATCH - WINTER STORM
FOR NORTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 5:16 A.M. EST SATURDAY 27 DECEMBER 2025.
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YELLOW LEVEL WATCH - WINTER STORM - FOR:
GREATER SUDBURY AND VICINITY
MANITOULIN ISLAND
ESPANOLA - KILLARNEY
NORTH BAY - WEST NIPISSING.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
A MAJOR WINTER STORM EXPECTED SUNDAY EVENING TO MONDAY NIGHT.
WHAT:
POSSIBLE SNOWFALL AMOUNTS OF 10 TO 20 CM.
REDUCED VISIBILITY IN HEAVY SNOW AND BLOWING SNOW.
FREEZING RAIN IS POSSIBLE.
WHEN:
BEGINNING SUNDAY EVENING THROUGH TO MONDAY NIGHT.
ADDITIONAL INFORMATION:
A RAPIDLY INTENSIFYING LOW PRESSURE SYSTEM IS EXPECTED TO TRACK OVER
THE GREAT LAKES. PRECIPITATION IS EXPECTED TO BEGIN AS FREEZING
DRIZZLE OR LIGHT FREEZING RAIN BEFORE TRANSITIONING TO ICE PELLETS
OR SNOW SUNDAY NIGHT. SNOW MIXED WITH ICE PELLETS AND FREEZING RAIN
AT TIMES IS EXPECTED TO CHANGE TO SNOW MONDAY AFTERNOON AND END
OVERNIGHT.
THERE REMAINS SOME UNCERTAINTY REGARDING THE TRACK OF THE LOW
PRESSURE SYSTEM AND AS A RESULT EXACT PRECIPITATION AMOUNTS REMAIN
SOMEWHAT UNCERTAIN.
ROADS AND WALKWAYS MAY BE DIFFICULT TO NAVIGATE. VISIBILITY MAY BE
SUDDENLY REDUCED TO NEAR ZERO AT TIMES. ROAD CLOSURES ARE POSSIBLE.
LOCAL UTILITY OUTAGES ARE POSSIBLE. PREPARE FOR POSSIBLE DISRUPTIONS
TO TRANSPORTATION, SERVICES, AND UTILITIES.
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, 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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