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WWCN12 CWTO 191728

WINTER STORM WARNING

FOR NORTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 1:28 P.M. EDT WEDNESDAY 19 MARCH 2025.

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WINTER STORM WARNING FOR:

      SAULT STE. MARIE - ST. JOSEPH ISLAND

      SEARCHMONT - MONTREAL RIVER HARBOUR - BATCHAWANA BAY.



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==DISCUSSION==



A WINTER STORM IS EXPECTED BEGINNING THIS AFTERNOON. 



WHAT: 

TOTAL SNOWFALL AMOUNTS OF 15 TO 25 CM POSSIBLE. 

RISK FOR FREEZING RAIN WITH LIGHT ICE BUILD-UP POSSIBLE. 



WHEN: 

BEGINNING THIS AFTERNOON AND TAPERING OFF THURSDAY MORNING. 



ADDITIONAL INFORMATION: 

PRECIPITATION WILL BEGIN AS RAIN AND WILL QUICKLY TRANSITION TO SNOW 

THIS EVENING OR OVERNIGHT. A RAIN-SNOW TRANSITION LINE WILL STRETCH 

FROM SAULT STE. MARIE NORTHEAST TOWARDS KIRKLAND LAKE. ALONG THIS 

TRANSITION LINE, FREEZING RAIN OR ICE PELLETS IS POSSIBLE. NORTH OF 

THE TRANSITION LINE, PRECIPITATION WILL BE HEAVY SNOW. PRECIPITATION 

IS EXPECTED TO CHANGE OVER TO ALL SNOW LATE TONIGHT TAPERING OFF 

NEAR MIDDAY THURSDAY. 



THE POSITION OF THIS RAIN-SNOW TRANSITION LINE MAY STILL SHIFT NORTH 

OR SOUTH WHICH WILL AFFECT EXACT PRECIPITATION AMOUNTS AND TYPES.



CONSIDER POSTPONING NON-ESSENTIAL TRAVEL UNTIL CONDITIONS IMPROVE. 

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

BECOME DIFFICULT TO NAVIGATE DUE TO ACCUMULATING SNOW. RAPIDLY 

ACCUMULATING SNOW COULD MAKE TRAVEL DIFFICULT OVER SOME LOCATIONS. 

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

BECOME ICY AND SLIPPERY. 



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