Update 9:11 a.m. Monday: The weather advisory for Cornwall and SD&G has ended.
Update 4:39 a.m. Monday: Environment Canada has ended the winter storm warning. A weather advisory is still in effect.
SD&G – A winter storm warning is in effect for Cornwall and SD&G with the first significant snowfall of the season expected later today (Sunday).
Environment Canada says snow will quickly accumulate tonight.
The precipitation will start as snow and ice pellets late this morning, with about 2 centimeters (0.8 inches) of buildup.
The heavy snow will happen tonight with 10-15 centimeters (4-6 inches) expected. A further 2-4 centimeters (0.8-1.6 inches) could fall Monday.
Environment Canada says, at its peak tonight, the snow will be falling at about 2-3 centimeters (0.8-1.2 inches) per hour.
The wind is also expected to be strong today with gusts up to 40 kilometers an hour.
The agency says you may want to consider postponing any non-essential travel until conditions improve, which is expected by Monday afternoon.