Tuesday, 9 December 2014

Major storm to impact southern Quebec

NCDOT photo of the Atlantic Ocean rushing onto North Carolina Highway 12 on the Outer Banks Monday. The flooding was caused by a strong Nor'Easter heading for New England and Quebec. Gale force winds, coastal flooding and heavy snow and rain will occur along the track of the storm. Strong winds and snow for Montreal.
Winter Storm Warning: Vermont, NY as well as Quebec City, Beauce and Townships.
Winter Weather Advisory: St. Lawrence Valley.
Special Weather Statement: Metro Montreal and Ottawa.

Low pressure this morning just east of Virginia Beach will move northeast towards New York City while deepening today. A plume of moisture associated with this system will overspread New England today and into southern Quebec and eastern Ontario tonight. Temperature profiles will be critical but it looks like mainly snow for Montreal and Ottawa with perhaps a mix across other portions of the province. This morning Montreal is cloudy and -5C. The temperature has fallen 5 degrees in the last hour after a wind shift form southeast to northeast. Northeast winds will increase all day becoming strong 50-70km/h by tonight and as high as 110km/h in Quebec City.

Light snow will develop this evening and continue throughout Wednesday in Montreal with 10-15cm (4-6 inches) likely for the city and perhaps 20cm (8 inches) outside the metro areas. As much as 30cm (1 foot) is possible in Quebec City and across the Beauce and Eastern Townships. There will be blowing snow as well reducing visibility in the St. Lawrence Valley. Travel will be slow across a wide area of eastern Ontario, southern Quebec and the northeast US late tonight and Wednesday. Light snow will continue into Thursday for Montreal with additional accumulations likely. Temperatures during the storm will be around 0C (32F) for highs and -4C (25F) for lows. The storm will slowly weaken as it meanders around New England before being swept into the Atlantic by Saturday.

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