084
WWCN12 CWTO 272157
YELLOW WARNING - WINTER STORM
FOR NORTHERN ONTARIO
ISSUED BY ENVIRONMENT CANADA
AT 4:57 P.M. EST SATURDAY 27 DECEMBER 2025.
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YELLOW LEVEL WARNING - WINTER STORM - FOR:
=NEW= GREATER SUDBURY AND VICINITY
=NEW= MANITOULIN - BLIND RIVER - KILLARNEY
=NEW= NORTH BAY - WEST NIPISSING.
YELLOW LEVEL WARNING - WINTER STORM - REPLACES YELLOW LEVEL WATCH -
WINTER STORM - FOR:
GREATER SUDBURY AND VICINITY
MANITOULIN - BLIND RIVER - KILLARNEY
NORTH BAY - WEST NIPISSING.
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IMPACT LEVEL: HIGH
FORECAST CONFIDENCE: MODERATE
==DISCUSSION==
SIGNIFICANT WINTER STORM EXPECTED SUNDAY EVENING TO MONDAY NIGHT.
WHAT:
FREEZING RAIN WITH 10 TO 20 MM OF ICE ACCRETION.
SNOWFALL AMOUNTS OF 10 TO 15 CM.
STRONG NORTHWESTERLY WINDS WITH GUSTS OF 60 TO 70 KM/H
REDUCED VISIBILITY IN HEAVY SNOW AND BLOWING SNOW.
WHEN:
BEGINNING SUNDAY EVENING AND CONTINUING INTO MONDAY NIGHT.
ADDITIONAL INFORMATION:
PRECIPITATION IS EXPECTED TO BEGIN AS FREEZING RAIN SUNDAY EVENING
AND CONTINUING THROUGH THE OVERNIGHT. THE FREEZING RAIN IS EXPECTED
TO TRANSITION TO SNOW THROUGH MONDAY MORNING. DURING THE TRANSITION
A BRIEF PERIOD OF ICE PELLETS IS POSSIBLE. THE STRONG NORTHWESTERLY
WINDS WILL PICK UP THROUGH MONDAY AFTERNOON LEADING TO REDUCED
VISIBILITY FROM BLOWING SNOW AND FALLING SNOW.
ROADS AND WALKWAYS MAY BE VERY DIFFICULT TO NAVIGATE. TRAVEL MAY BE
HAZARDOUS. VISIBILITY MAY BE SUDDENLY REDUCED TO NEAR ZERO AT TIMES.
ROAD CLOSURES ARE POSSIBLE. PROLONGED UTILITY OUTAGES ARE POSSIBLE.
SIGNIFICANT PROPERTY OR TREE DAMAGE IS POSSIBLE. AVOID NON-ESSENTIAL
TRAVEL AND OUTDOOR ACTIVITIES. PREPARE FOR 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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