The message is clear from Transport Quebec, don't crowd the plow. There will be plenty of plowing and salting to be done over the next week as back-to-back storms will impact southern Quebec. A winter storm watch in now in effect for Montreal, with 20 to 35cm of snow possible from late Wednesday into Thursday. (Transport Québec)
Winter Storm watch in effect for Montreal, Southern Quebec and the Ottawa Valley.
The watch will likely be upgraded to a warning for several regions once a a more definitive storm track is determined.
A cold front will sweep across southern Quebec on Tuesday, accompanied by some gusty winds and perhaps a few snow squalls and flurries. The front will move south of the region, with Arctic high pressure building into Quebec for a few hours Wednesday. Wednesday will start off cold, with lows down to -20C (-4F).
On Wednesday, clouds will thicken and lower as strengthening low pressure moves from Texas into the Ohio Valley and eventually down the St. Lawrence Valley. Snow will move into eastern Ontario on Wednesday afternoon, and the Montreal region during the evening hours. The snow will become very heavy at times, especially during the Thursday morning commute in Montreal. Sleet or freezing rain may mix in south of the St. Lawrence River, but most of the precipitation will fall as snow. At this time, accumulations are expected in the 20-30cm range, with 40cm possible north of Montreal.
Expect very difficult driving conditions region wide on Thursday, if you can work from home. The snow will be accompanied by northeast winds of 20-40km/h creating areas of blowing snow. The high on Thursday will be -3C (27F) in Montreal.
Enjoy Friday as skies clear out and we have partly cloudy but cold wether. Another strong area of low pressure will take aim at our region over the weekend, with more snow forecast. More on that once we get this system out of the way.
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