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WWCN12 CWTO 280846

FREEZING RAIN WARNING

FOR NORTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 4:46 A.M. EDT FRIDAY 28 MARCH 2025.

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FREEZING RAIN WARNING FOR:

      SAULT STE. MARIE - ST. JOSEPH ISLAND

      MANITOULIN - BLIND RIVER - KILLARNEY.



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==DISCUSSION==



SIGNIFICANT FREEZING RAIN AND ICE PELLETS LIKELY, WITH POTENTIAL ICE 

STORM CONDITIONS. 



WHAT: 

PROLONGED PERIOD OF FREEZING RAIN WITH ICE ACCRETION OF 5 TO 15 MM. 

ICY AND SLIPPERY CONDITIONS. 

UTILITY OUTAGES AND TREE DAMAGE POSSIBLE. 



WHEN: 

BEGINNING LATE THIS AFTERNOON OR EVENING AND ENDING EARLY SATURDAY 

MORNING. 



ADDITIONAL INFORMATION: 

SNOW IS EXPECTED TO MOVE INTO THE REGION DURING THE DAY, BUT SHOULD 

QUICKLY CHANGE OVER TO ICE PELLETS AS THE DAY PROGRESSES. THE THREAT 

OF SEVERAL HOURS OF FREEZING RAIN TONIGHT IS POSSIBLE, PARTICULARLY 

FOR MANITOULIN ISLAND AND AREAS NEAR THE NORTH CHANNEL. 



ONE POTENTIAL COMPLICATION IS HOW MUCH OF THE PRECIPITATION FALLS IN 

THE FORM OF ICE PELLETS VERSUS FREEZING RAIN. IF MOST OF THE 

PRECIPITATION FALLS IN THE FORM OF FREEZING RAIN, THIS HAS THE 

POTENTIAL TO BE A SIGNIFICANT ICE STORM FOR THE REGION. 



EASTERLY WINDS GUSTING UP TO 50 KM/H COULD EXACERBATE THE SITUATION 

IF THERE IS ICE BUILD-UP ON TREE LIMBS AND POWER LINES. 



AFTER A BRIEF BREAK DURING THE DAY SATURDAY, ANOTHER WINTER STORM 

WILL LIKELY AFFECT THE REGION ON SUNDAY WITH A THREAT OF SIGNIFICANT 

SNOWFALL, FREEZING RAIN AND ICE PELLETS. MORE DETAILS ON 

PRECIPITATION AMOUNTS WILL COME IN FUTURE UPDATES.



SURFACES SUCH AS HIGHWAYS, ROADS, WALKWAYS AND PARKING LOTS WILL 

BECOME ICY, SLIPPERY AND HAZARDOUS. SLOW DOWN DRIVING IN SLIPPERY 

CONDITIONS. WATCH FOR TAILLIGHTS AHEAD AND MAINTAIN A SAFE FOLLOWING 

DISTANCE. ICE BUILD-UP MAY CAUSE TREE BRANCHES TO BREAK. UTILITY 

OUTAGES MAY OCCUR. 



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.



HTTP://WEATHER.GC.CA



END/OSPC