Environment Canada issued snowstorm warnings for the Maritime Provinces and parts of Quebec on Sunday.
Up to 40 centimetres of snow is expected by Monday morning in some areas, accompanied by strong winds and blowing snow.
Wind gusts will increase to up to 140 km/h on Sunday afternoon in some regions.
The winter storm is caused by a major low pressure system south of Nova Scotia moving northeastward as it intensifies.
The low pressure system is expected to track northeastward across central Newfoundland Monday morning and out to sea Monday night. Snowfall will range 15 to 25 centimetres in some areas of the province, with wind gusts of up to 140 km/h.
Nova Scotia can expect between 20 and 40 centimetres of snow, with wind gusts of up to 90 km/h in some areas of the province. Higher than normal water levels and rough, pounding surf due to high waves is also expected.
In New Brunswick, blowing snow is expected to be worst along the east coast, with snowfall expected to range between 15 and 30 centimetres. Strong winds and elevated water levels along the coast are also expected.
Prince Edward Island will see upwards of 30 centimetres today, along with reduced visibility conditions and high water levels and large waves.
Some areas of southern Quebec will get 15 to 40 centimetres of snow, with wind gusts of up to 90 km/h.
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