Significant Changes To The Storm Effecting The Region

Local Update...
   Major Winter Storm Underway Across The Region; Snow Will Continue To Develop Into Northern Vermont, and Northern New York Over the Next Few Hours...

STORM ALERT DETAILS
     The National Weather Service in Burlington, VT has issued a continues the Winter Storm Warning for All of Vermont, and has upgraded the Winter Weather Advisory to a Winter Storm Warning for the Northern Champlain Valley, and Northern Adirondack Mountains in New York for the potential of 6-12 inches of snow, with the exception of Rutland, and Windsor Counties in South-Central Vermont where they are calling for 4-9 inches of snow/ sleet with a half inch or more of ice accumulations. The National Weather Service in Albany, NY continues a Winter Storm Warning for Bennington, and Windham Counties in Southern Vermont for the potential of 1-6 inches of snow/ sleet, and half to one inch of ice accumulation with locally higher amounts. JRWeather has continues the Ice Storm Warning across Bennington, and Windham Counties in Vermont for the potential of over one inch of ice accumulation. A Winter Storm Warning continues for all of Vermont, and the Advisory areas in Northwestern Vermont, and Northern New York have been upgraded to a Winter Storm Warning for 6-12 inches of snow with locally higher amounts along the north and central western slopes of the green mountains. Lesser amounts of snow will fall across Rutland and Windsor Counties, but ice accumulations will be very significant in the half to one inch range. Due to the significant combination of both, a Winter Storm Warning is in effect instead of an ice storm warning, such as that across Bennington, and Windham Counties. In those two southern most counties all/ mainly ice is going to occur. A Winter Weather Advisory for the St. Lawrence Valley of Northern New York for 3-6 inches of snow.

STORM OVERVIEW
     Currently a low pressure system across the Southeast United states is drawing in significant amounts of sub-tropical moisture. Water vapor imagery shows the extreme amount of moisture being drawn up into the system, this sub-tropical moisture is going to interact with the cold air across the region resulting in a variety of precipitation. Where the cold air is the thickest in the atmosphere mainly snow will fall, as the cold air becomes thinner across southern area, a mix of more sleet, and freezing rain will occur.

   (The water vapor image below shows the impressive amount of moisture already in this system.)

CLICK ON IMAGE TO ENLARGE!

MODEL DATA
     Models have finally came into better agreement, as far as precipitation totals, and types go. (Just as the storm is starting how convenient huh?) The precipitation cutoff line has shifted much further to the north and west, but it is still something to watch closely. Both models are indicating the potential for Warning Criteria snow to fall even in the St. Lawrence Valley! I don't quite believe this, but this is something that will need to be watched very closely.

(This is the 12Z Model run of the NAM, and GFS showing forecasted snow totals. Note: The GFS image is a 120 hour total snow forecast, however the snow totals depicted on the map are from the above mentioned storm only.)



CLICK ON IMAGES TO ENLARGE!

JRWEATHER FORECAST
     Light Snow will continue to develop across Northern, and Central Vermont, and Northern New York by 8 or 9PM. The snow will intensify and fall heavy at times overnight. Across Southern Vermont a snow sleet mix will continue to change over to a Sleet/ Freezing Rain mix, and fall heavy at times. Precipitation will end from West to East across the entire region Friday Afternoon. Stay tuned!!

ALL IMAGES ON THIS PAGE CLICK TO ENLARGE!

     (Updated Alerts, and Precipitation Totals Maps.)