Wednesday, 12 March 2014

Powerful winter storm for Montreal

The Weather Channel warnings map shows the extent of this upcoming winter storm. Weather warnings spread form the Midwest US into Atlantic Canada.
MONTREAL: Winter Storm Warning (15-25cm)

First of all this morning, always remember just how challenging a month March can be. It can feature summer like warmth but also has the distinction of producing some of the biggest snowstorms this city has recorded, 1971 and 1993 come to mind, just to name a few. This one may be another.

A large late season winter storm is expected to move from Kentucky towards New York City today while strengthening. The system has already spread a swath of heavy snow from Chicago to Detroit/Windsor this morning and it is creeping towards the Lake Erie shoreline in Ontario. The storm has even produced thunder and lightning with the heavy snow across Indiana. Snow is forecast to arrive around noon in Montreal becoming heavy this afternoon for the commute and lasting overnight. Widespread blowing snow will also occur as winds increase out of the northeast to 70km/h by late in the day, backing to the north after midnight and gradually decreasing. Storm totals forecast are from 15-25cm (6-10 inches) for the Montreal to Kingston corridor with less to the north of the St. Lawrence River. Meanwhile between 30-60cm (1-2 feet) is forecast across the Eastern Townships and into Vermont and New York. Travel off island to the south may become very difficult this afternoon. In western New York winds expected close to 100km/h have prompted rare blizzard warnings.

Temperatures are rather mild this morning at -2C but are expected to drop as the snow starts, down to -4C by late in the day and to -15C by Thursday morning. Blowing snow is expected to reduce visibility to near zero at times late today and tonight. Skies will slowly clear out Thursday afternoon as the storm moves into Atlantic Canada. It will remain cold on Thursday with gusty winds.

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