U.S. National Radar

Comet Ison Viewing Guide

Monday, December 7, 2009

Weather synopsis: December 7


Currently in Buffalo, NY the temperature is 30°F with overcast skies. A weak storm system will be dominating our weather for today. This storm is producing clouds and snow showers for much of the Northeast. This system could produce some snow for the area on the order of 0.1" to 0.5" by evening. Looking ahead, NCEP forecast models are indicating a potential significant storm system to develop and affect the Great Lakes as well as the Northeast with snow, ice and strong winds this week. I expect this system to initially produce and icy mix of snow, freezing rain and sleet for Buffalo on Wednesday. Then moderating temperatures will change the precipitation to rain for a brief period. By Wednesday evening cold air will move back in to the picture and change the precipitation to snow once again. It is still early so there is uncertainty as to the affects of this storm system but we can end up with several inches of snow. This system will also produce strong winds coupled with significant snow creating the scenario for blizzard conditions. By Thursday the system will pull way, in the wake of this storm very strong winds will take precedence setting up the stage for Lake-Effect snow. Some areas will pick up quite a lot of Lake-Effect snow on top of what ever snow this system produces. Finally, cold arctic air will stay in place for the next several days allowing the snow to stick around for a while as this cold and snowy weather pattern persists.

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