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 January 11-12, 2011
STORM DESCRIPTION
A rapidly strengthening storm system brought a significant snowstorm to
much of New Jersey.
Synoptic Discussion
Two low pressure systems converged to produce this winter storm. The
first developed in far southern Texas during the morning of January
9th. This low moved east and was located in the northern Gulf of Mexico
near Louisiana by the evening
of the 9th. By the morning of the 10th, this low had continued east and
was located just south of far western Florida.
Around this time the second low began to develop in Nebraska. By the
evening of the 10th, the first low was near the extreme northeastern
Gulf coast, while the second low had reached Missouri. During the night
both lows continued moving
east, and by the morning of the 11th the first low was off the Carolina
coast while the second low was in Illinois. By the
evening of the 11th the first low had reached Cape Hatteras, while the
second low was over Lake Erie. From here the lows
rapidly moved towards southern New England and intensified, with a
single much stronger low pressure located over Rhode Island by the
morning of the 12th. The low reached the Gulf of Maine by the evening
of the 12th.
Local Discussion
Precipitation overspread New Jersey from west to east during the early
evening of the 11th. Warm temperatures at the surface and aloft caused
the precipitation to mix with sleet, freezing rain and rain at the
onset across parts of southern
and eastern New Jersey, but precipitation was snow from the start
further north and west. As the low pressure
strengthened, cold air was wrapped south across the state and
precipitation changed over to snow everywhere by the late
evening hours. The snow became heavy at times during the overnight
hours across northeastern New Jersey, with somewhat lighter snowfall
rates elsewhere. Precipitation ended from southwest to northeast
between midnight and dawn on the 12th.
Total accumulations were heaviest in northeastern New Jersey, ranging
from 5 to 11 inches in Bergen, Middlesex, Monmouth and Passaic
counties, 3 to 9 inches in Burlington, Camden, Essex, Gloucester,
Hudson, Hunterdon, Mercer, Morris, Ocean, Somerset, Sussex, Union and
Warren counties, and 1 to 5 inches in Atlantic, Cape May, Cumberland
and Salem counties.
New Jersey Snowfall Totals
Individual
Snowfall Totals from January 11-12, 2011
Regional Snowfall Totals
Snowfall
Totals from January 11-12, 2011
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 26-27, 2010
Snow storm,
January 7, 2011
Snow storm, January 8, 2011
Snow storm, January 11-12, 2011
Snow and ice
storm, January 17-18, 2011
Snow storm,
January 21, 2011
Snow and ice
storm, January 26-27, 2011
Snow storm,
February 21-22, 2011
Back to
Ray's Winter Storm Archive
Copyright © 2011 by Raymond C Martin Jr. All rights
reserved