November 8, 2010

Wintry Precipitation Continues Across The Region










Alerts:
CPV Weather
         -Champlain Valley Weather has issued a Winter Weather Advisory for Northeastern New York, and all of Vermont. For a mix of wintry precipitation, with snow/ sleet accumulations up to 2 inches in the higher terrain, and ice accumulations of up to a third of an inch, with the highest amounts being in the higher terrain.

         -Champlain Valley Weather has issued A Wind Advisory for the entire Champlain Valley. Sustained Northerly winds will be in the 15-25MPH range with gusts up to 45MPH. Isolated stronger wind gusts could occur along the Lake Champlain shoreline.

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NWS Burlington, VT
         -The National Weather Service in Burlington, VT has issued a Winter Weather Advisory for portions of the Adirondack Mountains, and much of Vermont. For a mix of wintry precipitation with Snow/ sleet accumulations of 1-2 inches, and Ice accumulations of one to three tenths of an inch, with the highest amounts in the higher terrain.

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Champlain Valley Weather Discussion:

OVERVIEW
         Low pressure currently over Cape cod has deepened down to 993mb overnight, and continues to drift slowly towards the South-Southwest. The storm should continue to drift towards the south, and then back east and out to sea by tonight.

WINTRY PRECIPITATION
         Sure enough, cold air has pushed all the way down into the Valley, and is holding on stronger then expected, thus I have had to issued a Winter Weather Advisory for the entire area. While areas within a couple miles of lake Champlain are slightly above freezing, much of the Champlain Valley is currently at 31-33 degrees. Across the rest of Northeastern New York, and the rest of the state of Vermont temperatures are generally in the 28-32 degree range. This is resulting in a mix of Snow, Sleet, and Freezing Rain. It seems at this point around 1000 feet, and above primarily snow and sleet are falling, with areas between 500 and 1000 feet mainly freezing rain, and some sleet. Over the course of the day temperatures will continue to rise, and eventually any wintry precipitation should change to all rain in the Champlain Valley. In the higher elevations any Snow should change back over to sleet, and eventually back to Freezing rain. For the Champlain Valley, areas along the lakeshore can expect only a Trace of snow/sleet accumulation. Elsewhere in the Champlain Valley a half to perhaps one inch of snow/sleet could occur, with up to a quarter inch of ice, in some of the elevated locations within the valley. For the higher terrain snow/sleet accumulations of up to 2 inches is possible, with localized higher amounts near 3 inches. Ice accumulations for the higher terrain could get as high as a third of an inch.

WIND
         Currently winds are fairly strong, but not quite as strong as initially expected. Winds for the most part in the Champlain Valley are sustained at 10-15MPH with gusts around 25-30MPH. On Lake Champlain itself winds are 20-35MPH with gusts to 45MPH. Winds within the Champlain Valley should continue to increase into the 15-25MPH range with gusts up to around 45MPH. Isolated higher gusts could be possible along the lakeshore. Winds over the open lake will increase a bit more into the 25-40MPH range with gusts 50-55MPH possible. For the rest of the area winds will be 10-20MPH with gusts to 30-40MPH. These winds combined with any of the heavier ice accumulations could result in downed tree limbs. So there is the threat of some isolated power outages.

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