Monday, April 23, 2012

Nor'Easter continues

** The weather has resulted in school bus cancellations across Stormont, Dundas and Glengarry Counties in Ontario as well as Cornwall and some in Leeds & Grenville.

Heavy Rain Warning for Montreal today.
High wind advisory for the St. Lawrence Valley
Snow in Ottawa.

The Nations Capital barely visible under a wet blanket of snow at 7am.
It will be a stormy day today across western Quebec, Eastern Ontario and New England as strong low pressure lifts north from the Jersey Shore into the central Adirondacks later today. Overnight Montreal had a mix of rain and very wet snow with a slushy coating on my car this morning that is rapidly being washed away. The rain was heavy at times with close to 30mm or over 1 inch here on L'Ile Perrot since 10pm. Temperatures were as low as 1C and are at a chilly plus 2C (36F) now. Winds are strong out of the northeast at 50km/h with a peak gust overnight to 71km/h at Trudeau Airport and they will continue to gust to 70km/h today.

While enough warm air is in place in Montreal for rain you do not have to go very far west to have snow. Along and west of the 416 corridor in Ontario including Ottawa a heavy wet snow has visibility down to 1km at times. From Prescott north through Kemptville to Ottawa and west a good 2-5cm of snow has fallen and will continue to fall today while mixing with rain at times. Roads are snow covered in places and travel is slow. It is raining in Toronto but south of the GTA in the Niagara Region and western New York heavy snow is developing and will accumulate 5 to 10 inches (up to 25cm) locally. The heavy nature of the snow will bring down trees and power lines. There is even a good chance of some thunder with the snow at times.

As the low moves northward a pronounced dry slot is working its way into the Champlain Valley and north towards Montreal. As a result we may see a break in the precipitation in Montreal later this morning. Look for a generally wet and windy day across the region with highs near 10C for Montreal south and east and between 2 and 5C for points north and west.

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