Monday, November 21, 2011

Snow Update

It appears our first snow of the season is on the way for metro Montreal and points south and east of the city into the Townships. I hesitate to call this a storm, however it will be a potent low pressure area with decent lift as it moves from the Ohio Valley across New England on Wednesday. Moisture will be limited in Montreal due to the speed of the system and temperatures will be flirting with the freezing point through the event so some of the snow may melt. Snow should overspread the area from west to east after midnight on Tuesday into Wednesday and mix with freezing rain and rain by Wednesday morning. At this time it looks like the heaviest snow will be across the higher elevation of the Eastern Townships and New England with 10-15cm possible. In the valley's including Montreal I think 3 to 5cm is a good bet. While it is not lots of snow, it is the first taste of winter for Montreal and that will likely cause some traffic problems on Wednesday morning.

At this time a Winter Storm Watch is in effect for northern New York and Vermont with just a special weather statement highlighting the first snow of the season for Ottawa, Cornwall and Montreal. It is Thanksgiving Week south of the border, so lots of people are travelling. At this time it looks like portions of Interstate 87, 89 and 91 will be affected by snow and ice, as well as Highways 10, 15 and 20 in Quebec and the 401 in Eastern Ontario.

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