390
WWCN11 CWTO 290648
YELLOW WARNING - WINTER STORM
FOR SOUTHERN ONTARIO
UPDATED BY ENVIRONMENT CANADA
AT 1:48 A.M. EST MONDAY 29 DECEMBER 2025.
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YELLOW LEVEL WARNING - WINTER STORM - FOR:
TOWN OF PARRY SOUND - ROSSEAU - KILLBEAR PARK
HUNTSVILLE - BAYSVILLE
ALGONQUIN
BURK'S FALLS - BAYFIELD INLET.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
SIGNIFICANT WINTER STORM CONTINUES TODAY AND TONIGHT.
WHAT:
FREEZING RAIN WITH 5 TO 15 MM OF ICE ACCRETION.
SNOWFALL AMOUNTS OF 10 TO 15 CM.
NORTHWESTERLY WIND GUSTS UP TO 70 KM/H.
REDUCED VISIBILITY IN HEAVY SNOW AND BLOWING SNOW.
WHEN:
CONTINUING TODAY AND TONIGHT.
ADDITIONAL INFORMATION:
FREEZING RAIN MAY TRANSITION TO PERIODS OF RAIN, DRIZZLE OR FREEZING
DRIZZLE EARLY THIS MORNING AS TEMPERATURES ARE EXPECTED TO RISE TO
NEAR OR JUST ABOVE THE FREEZING MARK. ANY RAIN, DRIZZLE OR FREEZING
DRIZZLE WILL THEN CHANGE OVER TO SNOW NEAR NOON AS TEMPERATURES
QUICKLY FALL. REDUCED VISIBILITY FROM BLOWING SNOW IS ALSO EXPECTED
THIS AFTERNOON AND EVENING.
SOUTHWESTERLY WINDS ARE ALSO EXPECTED TO DEVELOP THIS MORNING WITH
WIND GUSTS OF 50 OR 60 KM/H. THE WINDS WILL BECOME NORTHWESTERLY
THIS AFTERNOON WITH GUSTS UP TO 70 KM/H. AREAS WITH SIGNIFICANT ICE
BUILD-UP FROM FREEZING RAIN WILL BE MOST VULNERABLE.
ROADS AND WALKWAYS WILL LIKELY BE DIFFICULT TO NAVIGATE. VISIBILITY
WILL LIKELY BE SUDDENLY REDUCED TO NEAR ZERO AT TIMES. ROAD CLOSURES
ARE POSSIBLE. LOCAL UTILITY OUTAGES ARE LIKELY. PROPERTY OR TREE
DAMAGE IS POSSIBLE. PREPARE FOR QUICKLY CHANGING AND DETERIORATING
TRAVEL CONDITIONS. CONSIDER POSTPONING NON-ESSENTIAL TRAVEL AND
OUTDOOR ACTIVITIES UNTIL CONDITIONS IMPROVE.
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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