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WWCN12 CWTO 301603

WINTER STORM WARNING

FOR NORTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 12:03 P.M. EDT SUNDAY 30 MARCH 2025.

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WINTER STORM WARNING FOR:

      SEARCHMONT - MONTREAL RIVER HARBOUR - BATCHAWANA BAY

      TEMISKAMING SHORES - TEMAGAMI.



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==DISCUSSION==



WINTER STORM TODAY INTO MONDAY MORNING. ICE STORM LIKELY FOR SOME. 



WHAT: 

FREEZING RAIN WITH SIGNIFICANT ICE ACCRETION OF 5 TO 15 MM. 

UTILITY OUTAGES POSSIBLE. 

SLIPPERY SURFACES AND BROKEN TREE BRANCHES FROM ICE BUILD-UP. 

SNOWFALL AND ICE PELLET AMOUNTS UP TO 20 CM NORTH OF A LINE FROM 

RANGER LAKE TO COBALT. 



WHEN: 

TODAY THROUGH MONDAY MORNING. 



ADDITIONAL INFORMATION: 

SNOW OR ICE PELLETS HAS TRANSITIONED TO FREEZING RAIN IN SOME 

COMMUNITIES. FREEZING RAIN IS EXPECTED TO BE MOST SIGNIFICANT FOR 

LOCATIONS SOUTH OF A LINE FROM RANGER LAKE TO COBALT WHERE ICE STORM 

CONDITIONS ARE POSSIBLE. PRECIPITATION WILL TRANSITION BACK TO ICE 

PELLETS AND THEN SNOW FROM WEST TO EAST LATE TONIGHT INTO MONDAY 

MORNING. 



CONDITIONS WILL IMPROVE MONDAY MORNING AS THE WEATHER SYSTEM EXITS 

THE PROVINCE.



CONSIDER POSTPONING NON-ESSENTIAL TRAVEL UNTIL CONDITIONS IMPROVE. 

PREPARE FOR QUICKLY CHANGING AND DETERIORATING TRAVEL CONDITIONS. 

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

BECOME ICY, SLIPPERY AND HAZARDOUS. ICE BUILD-UP MAY CAUSE TREE 

BRANCHES TO BREAK. 



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