Storm description, surface observations, snowfall totals, and images courtesy of the National Climatic Data Center, the National Centers of Environmental Prediction, the Climate Prediction Center, the Hydrometeorological Prediction Center, the Mount Holly National Weather Service Office, the Upton National Weather Service Office, Rutgers University, Plymouth State University, the University of Illinois, the American Meteorological Society, Weather Graphics Technologies, AccuWeather, and the Weather Channel.



Table of Contents

Storm Summary
Regional Surface Observations
National Weather Service Forecasts
Surface Maps
Satellite Imagery
National Surface Weather Maps - Pressure and Fronts Only
Continental Surface Weather Maps - Pressure and Fronts Only
Sea Level Pressure and 1000 to 500 Millibar Thickness Maps
850 Millibar Maps
700 Millibar Maps
500 Millibar Maps
300 Millibar Maps
200 Millibar Maps
National Radar Imagery
Regional Radar Imagery
Fort Dix Doppler Radar Imagery




Contoured Snowfall Totals from December 31, 2009

STORM DESCRIPTION
A weak storm system brought a few inches of snow to New Jersey.

Synoptic Discussion
A cold front moved through New Jersey on the morning of December 29th, allowing arctic high pressure to build in across the state. A low pressure then began to develop in the northwestern Gulf of Mexico during the early morning hours of December 30th. By the evening of the 30th the low from the gulf had reached Louisiana, while by the early morning of the 31st it was in southern Alabama. By the evening of the 31st the low was in Georgia, and by the morning of January 1st it was east of the Outer Banks of North Carolina.

Local Discussion
Precipitation from this weak system arrived during the predawn hours of December 31st, rapidly spreading from southwest to northeast across New Jersey. It was in the form of snow in most of the state, but mixed with sleet and freezing rain in southeastern portions of the state. Precipitation briefly became moderate to heavy before quickly ending from west to east during the mid to late morning hours on the 31st. Snow accumulations were highest in northwestern New Jersey, with lesser amounts in southern areas. Totals ranged from 1 to 4 inches in Hunterdon, Morris, Sussex and Warren counties, 1 to 3 inches in Bergen, Passaic and Somerset counties, 1 to 2 inches in Essex, Hudson, Middlesex and Union counties, and a coating to 2 inches in Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer, Monmouth, Ocean and Salem counties. Little or no snow fell in Cape May County.



New Jersey Snowfall Totals

Individual Snowfall Totals from December 31, 2009

Regional Snowfall Totals

Snowfall Totals from December 31, 2009



Table of Contents

Storm Summary
Regional Surface Observations
National Weather Service Forecasts
Surface Maps
Satellite Imagery
National Surface Weather Maps - Pressure and Fronts Only
Continental Surface Weather Maps - Pressure and Fronts Only
Sea Level Pressure and 1000 to 500 Millibar Thickness Maps
850 Millibar Maps
700 Millibar Maps
500 Millibar Maps
300 Millibar Maps
200 Millibar Maps
National Radar Imagery
Regional Radar Imagery
Fort Dix Doppler Radar Imagery



Snow storm, December 5, 2009
Snow storm, December 19-20, 2009
Snow storm, December 31, 2009
Snow storm, February 2-3, 2010
Snow storm, February 5-6, 2010
Snow storm, February 9-11, 2010
Snow storm, February 15-16, 2010
Snow storm, February 25-26, 2010

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