A Significant And Prolonged Upslope Snow Event Possible Into Saturday; Non-Upslope Areas May Receive Some Significant Snowfall As Well; JRWeather Winter Storm Watch In Effect From 11PM Tonight Until 11PM Saturday Night...
JRWeather WINTER STORM WATCH
     JRWeather has issued a Winter Storm Watch for Orleans, Lamoille, Washington, Bennington, Eastern Franklin, Eastern Chittenden, Eastern Addison, Eastern Rutland, and Western Windham Counties in Vermont, and Southeaster St. Lawrence, Southern Franklin, Western Clinton, and Western Essex Counties in Northern New York From 11PM Tonight Until 11PM Saturday Night.
     An upper level low pressure system will move very slowly northeast into Canada, resulting in winds gradual changing to the Northwest. With the northwest wind, and moisture from the upper level low pressure system, a significant upslope snow event is likely to occur in the Northwest upslope regions from late tonight into late Saturday night. At this time though it is still not certain the exact direction of the winds, and how strong they will be, in order to produce this upslope snow event. So a Winter Storm Watch has been issued instead of a Warning.
     Any precipitation that ends today, or this evening, will start back up late tonight, or very early Friday morning. The snow will be occasionally heavy at times into Saturday. By Saturday night the snow should tapper off, as winds shift more to the North, and wind speeds lighten. Total snow accumulations look to range from 6-12 inches across much of the Western slopes of the Green Mountains, and the Western Slopes of the Northern Adirondack Mountains. A small area of 12-18 inches is possible along a line extending from Jay peak, to Hanksville, to near south Cambridge, to Mount Bolton, to Killington, to Haystack Mountain, and to Searsburg.
     A Winter storm watch is issued when there is a strong potential for severe winter weather, but not yet imminent. In this case the Winter Storm Watch has been issued for the potential of significant amounts of snow. Stay tuned for further updates.
JRWeather SPECIAL WINTER WEATHER STATEMENT
     JRWeather has issued a Special Winter Weather Statement for Essex, Caledonia, Orange, Windsor, Western Franklin, Western Chittenden, Western Addison, and Western Rutland Counties in Vermont, and Northern Franklin County in New York Until 11PM Tonight.
     A low pressure system, that will bring moisture, and a northwest wind to produce and upslope snow event, may have some impact, on the Champlain Valley, Western Rutland County, The Eastern portions of Vermont, and Northern Franklin County in New York.
     Current indications are that some significant snow may also fall in portions of the above mentioned area. For the Champlain Valley, areas that are more elevated but not considered portions of the Western Slopes could witness some significant snowfall as well. Not enough to warrant a Winter Storm Watch, but enough to issue a Winter Weather Statement. Some of these areas include East Highgate, Sheldon, East Fairfield, Fairfield/ St. Albans Hill, Fairfax, Westford, Fays Corner, Hinesburgh, and Bristol. In Western Rutland County some areas include Brandon, Rutland, and Danby.
     For areas in eastern Vermont not included in the Winter Storm Watch. Some higher elevation areas, across this region could also see some significant accumulating snow, but not quite enough to warrant a Winter Storm Watch. Areas such as Greensboro, Hardwick, Royalton, Ludlow, Perkensville, and Saxtons River.
     For Northern Franklin County in New York, areas that border the Western Slopes of the Northern Adirondack mountains that are not under a Winter Storm Watch could also see some significant snow accumulation. A couple of these areas are Malone, and Chateaugay.
     All the above mentioned areas could see 3-7 inches of snow by Friday night. Snow should tapper off in these regions by Friday night, as the snow moves into only the true Western upslope regions, due to the fact moisture will be decreasing some. If conditions become more certain that a Winter Weather Advisory may be needed for the above mentioned areas. Stay tuned!
     A Special Winter Weather Statement, is issued when significant but not severe winter weather could occur, but is not yet imminent. If conditions become more favorable then a Winter Weather Advisory may be needed.
DISCUSSION
     I have cancelled all the current alerts that were in effect until 9PM for the current storm. The National Weather Service continues there alerts for Northeastern Vermont until 1PM for the current storm.
     I have gone and issued a Winter Storm Watch, and a Special Winter Weather Statement for portions of the region for Tonight into Saturday. True Western Upslope regions could receive 6-12 inches with some of the highest elevations receiving 12-18 inches. The snow amounts stated in the Winter Storm Watch are preliminary. It should be noted that the potential exists for 9 or more inches of snow in the Watch area by Saturday night. The Special Winter Weather Statement has been issued to indicate that higher elevated areas of the Champlain Valley, and Western Rutland County could see 3-7 inches possible, as well as other higher elevation areas across Eastern Vermont, and Northern Franklin County New York, which are not included in a Winter Storm Watch. These areas may have to have a Winter Weather Advisory later tonight. I will await more information from Weather models before basing my decision. It should also be noted that areas within 6-10 miles of Lake Champlain will have significantly less snow.
     At this time, it is still uncertain as to how much snow will fall, as the movement of the system, strength, and direction of the winds, will be key as to how much snow falls, and where it will fall. The maps below indicate preliminary snow totals, these totals are subject to change. Stay tuned!
CLICK ON IMAGES TO ENLARGE!!



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