Wednesday, December 26, 2012

Snowstorm on schedule for Montreal

Winter Storm Warnings remain in effect at 9pm across the entire forecast area. Winds are increasing in the St. Lawrence Valley with gusts to 30km/h. The pressure here on L'Ile Perrot is falling rapidly. Winds will continue to increase to between 40-60km/h by morning. Snow in moving northward at this hour into southern Vermont and reaching into southern Ontario. The heaviest snow overnight will remain south of Montreal but approach the city by morning. At the worst of the storm snowfall rates of 2-5cm (1-2 inches) per hour are possible. There will be widespread blowing snow. Limit your travel to the city tomorrow as travel on area highways south and west will be very dangerous. Storm totals of 15-35cm (6-14 inches) are expected across the area with the higher amounts on the South Shore and lower amounts in Laval.

Low pressure is re-forming tonight near Salisbury, Maryland and will move to lie near Long Island on Thursday. Snow will taper off by early Friday morning.

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