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WWCN12 CWTO 190928

WINTER STORM WARNING

FOR NORTHERN ONTARIO

UPDATED BY ENVIRONMENT CANADA

AT 5:28 A.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

      ELLIOT LAKE - RANGER LAKE.



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==DISCUSSION==



A WINTER STORM IS EXPECTED BEGINNING EARLY THIS AFTERNOON. 



WHAT: 

TOTAL SNOWFALL AMOUNTS OF 10 TO 20 CM POSSIBLE. 

FREEZING RAIN WITH 2 TO 5 MM OF ICE BUILD-UP POSSIBLE. 



WHEN: 

BEGINNING EARLY THIS AFTERNOON AND TAPERING OFF THURSDAY MORNING. 



ADDITIONAL INFORMATION: 

SCATTERED FLURRIES, RAIN SHOWERS OR POSSIBLY FREEZING DRIZZLE WILL 

GIVE WAY TO MORE ORGANIZED PRECIPITATION NEAR NOON. CURRENT 

INDICATIONS SUGGEST THAT A RAIN-SNOW TRANSITION LINE WILL STRETCH 

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

TRANSITION LINE, FREEZING RAIN IS EXPECTED. NORTH OF THE TRANSITION 

LINE, PRECIPITATION WILL BE HEAVY SNOW POSSIBLY MIXED WITH ICE 

PELLETS. SOUTH OF THIS LINE, PRECIPITATION WILL MAINLY FALL AS RAIN. 

PRECIPITATION IS EXPECTED TO CHANGE OVER TO SNOW TONIGHT BEFORE 

TAPERING OFF THURSDAY MORNING. 



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. 

RAPIDLY ACCUMULATING SNOW COULD MAKE TRAVEL DIFFICULT OVER SOME 

LOCATIONS. SURFACES SUCH AS HIGHWAYS, ROADS, WALKWAYS AND PARKING 

LOTS MAY BECOME ICY AND SLIPPERY. POOR WEATHER CONDITIONS MAY 

CONTRIBUTE TO TRANSPORTATION DELAYS. 



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