****0000001925**** WWCN12 CWTO 191728 WINTER STORM WARNING FOR NORTHERN ONTARIO UPDATED BY ENVIRONMENT CANADA AT 1:28 P.M. EDT WEDNESDAY 19 MARCH 2025. --------------------------------------------------------------------- WINTER STORM WARNING FOR: SAULT STE. MARIE - ST. JOSEPH ISLAND SEARCHMONT - MONTREAL RIVER HARBOUR - BATCHAWANA BAY. --------------------------------------------------------------------- ==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