****0000001511**** WWCN12 CWTO 181436 WINTER STORM WATCH FOR NORTHERN ONTARIO UPDATED BY ENVIRONMENT CANADA AT 10:36 A.M. EDT TUESDAY 18 MARCH 2025. --------------------------------------------------------------------- WINTER STORM WATCH FOR: MANITOUWADGE - HORNEPAYNE WAWA - WHITE RIVER - PUKASKWA AGAWA - LAKE SUPERIOR PARK KAPUSKASING - HEARST TIMMINS - COCHRANE CHAPLEAU - MISSINAIBI LAKE. --------------------------------------------------------------------- ==DISCUSSION== WINTER STORM LIKELY WEDNESDAY INTO THURSDAY. WHAT: TOTAL SNOWFALL AMOUNTS OF 20 TO 40 CM. PEAK SNOWFALL RATES OF 3 TO 5 CM PER HOUR. POOR VISIBILITY IN HEAVY SNOW AND LOCAL BLOWING SNOW. WHEN: BEGINNING WEDNESDAY AND TAPERING OFF THURSDAY AFTERNOON. ADDITIONAL INFORMATION: CONFIDENCE IS INCREASING THAT A WINTER STORM WILL AFFECT PORTIONS OF NORTHEASTERN ONTARIO. NORTHERLY WINDS GUSTING TO 50 KM/H WILL RESULT IN AREAS OF BLOWING SNOW GIVING REDUCED VISIBILITY. AVOID TRAVEL IF POSSIBLE. RAPIDLY ACCUMULATING SNOW COULD MAKE TRAVEL DIFFICULT OVER SOME LOCATIONS. VISIBILITY MAY BE SUDDENLY REDUCED AT TIMES IN HEAVY SNOW. 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