U.S. National Radar

Comet Ison Viewing Guide

Saturday, December 5, 2009

Weather synopsis: December 5


Currently in Buffalo, NY the temperature is 33°F with overcast skies. An area of low pressure off the Carolina coast churning up the eastern seaboard is producing precipitation for the Mid-Atlantic and much of the Northeast. This system produced snow in the South and is creating the overcast skies here in Buffalo. The system is overriding a cold air mass that has been in place over much of the eastern 2/3 of the lower 48. This will produce the first snowfall of the season for the mega-plex from Boston, MA down to Washington D.C. Areas along the immediate coast will see rain changing to snow before the system pulls away. There will be a wide area of snow accumulating 1.0"-2.0" by days end with a narrow strip of 3.0"-6.0" that includes the big cities of the Northeast. Here in Buffalo, the cold arctic air will continue in the days to come. With an active weather pattern associated with El Niño and cold air in place I expect to see frequent snow in the forecast with increased chances of big snows for the Great Lakes and the Northeast. The next chance of snow in Buffalo will come this Monday. A weak system will move into the picture. With the warm lake waters, Lake-enhanced snow is likely. This scenario will likely repeat itself so expect a progressively snowy weather pattern going froward.

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