Sunday, March 06, 2011

Winter Storm Warning

As I expected the Winter Storm Warnings have been extended northwest to now include Montreal and our South Shore to the US border. After a soaking rain yesterday with 25mm in Montreal and 30mm in Ottawa the precipitation has changed to snow. It is snowing in Montreal at this hour but has ended in Ottawa. The temperature in Montreal has dropped from plus 6C (43F) late last evening to -1C (30F) as off 8am. Winds are now out of the north gusting to 40km/h. The snow will continue today, mostly light but will increase in intensity again this evening as low pressure develops near New York City and moves northeast. The snow will taper off by morning with a storm total of 15-20cm from Montreal south into New York and Vermont. Much less is forecast in eastern Ontario with less than 5cm in Ottawa and perhaps 5-10cm over Cornwall. Roads are very poor this morning, snow covered and with lots of ice around. Water accumulation remains a problem after yesterday's heavy rain and melting snow.

More updates on this storm will be posted during the day.

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