Sunday, November 21, 2010

Freezing Rain Warning

After a sunny but cold day, a warm front is slowly approaching southern Quebec. A narrow band of precipitation will accompany the front. Temperatures across all of southern Quebec are below freezing so expect a brief period of snow and freezing rain across Montreal before it changes over to rain. Elsewhere across southern Quebec and eastern Ontario, freezing rain warnings are in effect with 2-4mm of ice expected.

Yesterday we had a strong cold front cross the region in the early morning hours. A few squalls developed along the front with some snow and hail observed. Winds gusted to 65km/h with the frontal passage in Montreal, and there was even the rumble of thunder. Temperatures during the frontal passage dropped from plus 7C to 3C. It was cold overnight with low temperatures down to -6C in Montreal and colder across the suburbs. it will warm to 9C on Monday behind the front. If travelling tonight be aware that it only takes a little freezing rain to make roads treacherous. This will be the case especially north and south of metro Montreal and into the Ottawa Valley. It will take a few hours for the temperature to climb above freezing.

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