Tuesday, February 23, 2010

Winter Storm update

Wet snow slowed the morning commute this morning in Montreal.

5:30pm UPDATE: Winter Storm Warning has been posted by Environment Canada for the Laurentians for 15-25cm of snow. The snow will mix with rain in Montreal, but we may still see 10-15cm by the time it changes to showers late Wednesday. Travel will be quite changeable region wide with snow covered roads in places and low visibility in heavy wet snow.

Low pressure that moved to our south overnight dumped between 2 and 5cm of wet snow on the region. The snow has since tapered off but will begin again after midnight tonight. Low pressure is expected to deepen along the east coast of the US and move north towards Long Island tonight, and eventually into northern New England. A wide swath of moisture will fall along and to the west of the storm track. At present, Winter Storm Warnings have been posted for Vermont and New Hampshire westward into eastern New York, with Winter Weather Advisories for the St. Lawrence Valley of New York. No warnings have been issued yet for Quebec or Ontario. Snow is expected to accumulate 10 to 20cm across the Warning area with 5-15cm elsewhere including Montreal. The snow will mix with rain on Wednesday. I will update this storm again later today.

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