Wednesday, December 09, 2009
Our major winter storm is located along the shores of Lake Michigan this afternoon. It has deepened to a 978 mb low with strong winds and intense precipitation. Steady snow continues to fall in Montreal with more than 15cm this morning. A storm total of over 30cm is expected. Winds have been increasing all day in the St. Lawrence Valley. Visibility has been under 1km for most of the morning at Trudeau Airport. The storm has a nasty cold front that is producing severe thunderstorms in western New York this afternoon. The precipitation will become light this evening in our area but continue through the night. Winds will increase as the cold front approaches and cause considerable blowing and drifting snow. The winds could gust to 70km/h late tonight and Thursday. Behind the front arctic air will pour into the region dropping temperatures and producing heavy wind driven lake effect snows in Ontario and New York.