Thursday, February 25, 2010

High winds expected

As our current storm begins to end across the region we are already looking at precipitation edging northward from storm number 2. Most of the day today will be relatively tranquil but snow and rain will begin again late this afternoon and continue overnight. I am expecting a slushy mix in Montreal with as much as 10cm west of the city towards Ontario.

Yesterday's system dumped about 20cm of wet snow on Montreal with over 30cm in Burlington, Vermont, and upwards of 50cm over the Townships. This next storm is off the coast of North Carolina this morning near Cape Hatteras. The system is expected to lift northward towards New York City by Friday morning while deepening dramatically. Central pressure is expected to lower to the 970mb range making it a top five winter storm. The heaviest of snow will fall from the Ontario border west while rain is expected in eastern New York and most of southern Quebec. The rain snow line will be very close to Montreal, so the forecast needs to be monitored.

The big weather news with this storm will be the wind. As the storm intensifies winds will come out of the northeast in Montreal and gust over 50km/h. They will increase to 80km/h in gusts tonight, and over 100km/h in the Quebec City region and along the spine of the Green Mountains in Vermont. The storm is expected to linger into this upcoming weekend with wind, flurries and showers. This is a fluid situation with this storm, so I will try to update the blog later today.

As far as warnings go, high wind warnings are in effect for Quebec City and the Beauce region with Winter Weather Advisories in effect for the St. Lawrence Valley of New York. High Wind Watches are also posted for Vermont. Winter Storm Warnings are in effect for western and central New York and for the Niagara and Hamilton regions in Ontario.
Additional warnings may be posted later today.

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