Snow & Ice Storm January 6-8, 2009

Snowfall & Precipitation Reports

Ice Accumulation Reports

A complex storm system, similar to those that occurred during the 2007-08 winter, impacted the region January 6-8, 2009. An area of low pressure moved across the Ohio Valley Tuesday night to the Great Lakes Region Wednesday morning. In the meantime, a secondary area of low pressure began to form over the mid Atlantic region. The Great Lakes low moved gradually eastward across northern New York Wednesday evening and the coastal low moved into southern New England. The coastal low eventually become the dominant low Wednesday night and deepened as it headed northeast toward the Canadian Maritimes. It was cold enough for snow initially Tuesday evening. However, warmer air moved in aloft over cold air at the surface ahead of the Great Lakes low causing the snow to mix with and change to sleet and freezing rain. Warmer air eventually worked its way up the Hudson Valley changing the freezing rain to plain for a period Wednesday afternoon and evening. Across the Adirondacks and Lake George region sleet and freezing rain mixed with the snow. As the consolidating low moved northeast away from area Wednesday night colder air filtered back in changing the precipitation back to snow. Generally, a tenth to a quarter of an inch of ice accumulations were reported. Snowfall reports varied from 1 to 2 inches in many valley locations to 5 to 10 inches across the southern Adirondacks and southern Green Mountains. Precipitation Map

Surface Maps 500 mb Charts
Surface Map Jan 06, 2009
7 am EST January 6, 2009
500 mb Map Jan 6, 2009
7 am EST January 6, 2009
Surface Map Jan 7, 2009
7 am EST January 7, 2009
500 mb Map Jan 7, 2009
7 am EST January 7, 2009
Surface Map Jan 8, 2009
7 am EST January 8, 2009
500 mb Map Jan 8, 2009
7 am EST January 8, 2009