We are currently tracking a weak system expected to bring some moderate snowfall amounts between 10 to 20cm for portions of Central and Northeastern Ontario with local amounts towards 30cm of snow. Alongside this, there is the risk of some light freezing rain across the GTA and Southwestern Ontario.
Blue or '1':
Areas in the blue or marked with a '1' can expect less than 5cm of snow. In Southern Ontario, this includes Niagara, Delhi, London, Grand Bend, Kitchener, Toronto, Hamilton, Brighton and Kingston where a trace to 2cm can be expected. Further north including Cornwall, Brockville, Perth, Madoc, Peterborough, Barrie, Listowel and Goderich, snowfall totals between 2-4cm can be expected with locally higher amounts towards 6cm. In Northern Ontario, areas in the Far North including Attawapiskat, Fort Albert, Webequie, Sandy Lake, Fort Hope, and Pikangikum can expect between a trace and 2cm of snow. Towards the south including Ear Falls, Fort Frances, Ignace, Thunder Bay, Armstrong, and Mammamattawa amounts between 1-3cm can be expected. Areas between and including Nakina, Pagwa, Moosonee, Hearst, Peterbell, Wawa and Pukaskwa Park can expect between 4-6cm of snow.
Green or '2':
Areas in the green or marked with a '2' can expect between 5 to 10cm of snow. In Southern Ontario, this includes areas between Tiverton and Amberley stretching inland to Wingham, Mount Forest, and Arthur. This also includes the higher terrain near Shelburne and Orangeville as well as Collingwood. Into Central Ontario, 5 to 10cm of snow can be expected through Midland and Orillia extending into Fenelon Falls. In Eastern Ontario, this includes Ottawa, Renfrew, Pembroke, Plevna, Calabogie and Deep River. Amounts near 5cm are most likely between Calabogia, , and Ottawa. In Northern Ontario, areas north of Lake Superior including Nipigon, Marathon, Manitouwadge, Beardmore and Dorion can expect between 4 and 8cm of snow. Areas in Northeastern Ontario including Kesagami Park, Cochrane, Smooth Rock Falls, Chapleau, and Batchawana Bay can expect between 5 and 10cm of snow. Local amounts between 8 and 12cm are possible and lower amounts towards the north between 4 and 6cm are possible, although, the lower amounts are less likely.
Yellow or '3':
Areas in the yellow or marked with a '3' can expect between 10 to 20cm of snow. In Southern Ontario, this includes much of Grey County including Meaford, Owen Sound, Hanover and Markdale and extends into Bruce County to include Saugeen Shores, the Bruce Peninsula, and Chesley. Snowfall totals between 10 to 15cm are likely. In Eastern and Central Ontario, snowfall totals between 10 to 15cm are likely. This includes Bancroft, Haliburton, Huntsville, Algonquin Park, Burk's Falls, Washago, Apsley, Denbigh, and Stonecliffe. Areas further away from the north such as Bon Echo Park, Denbigh and Woodview may see lower amounts between 8 and 12cm while areas further north such as North Bay or the Bruce Peninsula may see the higher amount of the scale between 15 and 20cm of snow. In Northern Ontario, a large swath of 10 to 15cm can be expected between and including Timmins, Matheson, Kirkland Lake, Gogama, Sault Ste. Marie, Ranger Lake, and Ruel. This also includes North Bay and Mattawa. Local pockets towards 20cm are possible, especially for areas near the orange region or the area marked with a '4'.
Orange or '4':
Areas in the orange or marked with a '4' can expect between 15 and 25cm of snow. In Southern Ontario, this includes areas east of Georgian Bay such as Parry Sound, Bayfield Inlet, and Britt. Snowfall totals between 15 and 20cm are likely although local amounts may reach 25cm. In Northern Ontario, this includes areas north of Lake Nipissing such as Temagami and extends southwest to include Elliot Lake and Thessalon. Snowfall totals between 15 and 20cm are possible in this area. Closer towards Georgian Bay, snowfall totals between 20 and 25cm are likely. This includes Manitoulin Island, Espanola, Blind River, Sudbury, and Killarney. Local snowfall amounts towards 30cm can't be ruled out.
Blue or '1':
Areas in the blue or marked with a '1' can expect a trace to 1mm of ice accretion overnight Thursday into Friday. This includes portions of Southwestern Ontario from Kitchener/Waterloo extending north into Arthur and Orangeville and east into Guelph. This also includes portions of the GTA away from Lake Ontario stretching from Highway 401 north towards Lake Simcoe and everything in between. This includes Newmarket, Vaughan, and Uxbridge. Into Central Ontario, this also includes areas between Peterborough and Cobourg and extending into the Brighton area.
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