Thursday, March 30, 2017

More snow forecast for southern Quebec and Ontario

A late winter storm will provide plenty of sloppy travel across the Northeast US, southern Quebec, and eastern Ontario, from Friday into early Saturday. (AccuWeather)
Stubborn low pressure over eastern Canada has maintained a cool northerly flow for most of this week in Montreal. Combined with low clouds and fog, it has not been a very pleasant stretch of weather. Sunshine will make a brief appearance Thursday as high pressure crests over the area. This will provide us with a near perfect early spring day, expect a high temperature near 7C (45F) and light winds.

Late Winter Storm
Now the bad news, the good weather will be very short-lived. Low pressure is forecast to develop today and strengthen as it move across the Ohio Valley and southern New England on Friday. A plume of moisture arrives Friday in the form of snow mixed with a cold rain. All precipitation goes over to wet snow late Friday evening in Montreal, becoming heavy at times. Forecast accumulations appear to be in the 10 to 20cm range, the highest in northern New York, Vermont and the Eastern Townships. Montreal and Ottawa should have close to 10cm by Saturday morning. The storm will be terrain driven, with the highest accumulations expected in the hills and mountains, lowest amounts on the valley floors. Some mountain locations in southern New England may see up to 30cm (1 foot) of heavy wet snow. The weight of the snow may pose a problem to power lines and trees depending on how much you receive. The temperature in Montreal will be 3C (38F) Friday, but drop once the snow starts to around the freezing point. Precipitation should end Saturday, along with partial clearing and milder temperatures. It should all be a bad memory by Sunday, with sunshine expected and a high of 10C (50F) in Montreal.

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