As a ridge of high pressure extending from north of the Great Lakes southeast across southern New England moved slowly northeast, a low pressure system developed off the Carolina coast.  As this low moved north to northeast just off the mid Atlantic coast, it rapidly intensified during Wednesday morning.  This low moved across eastern Long Island during the early afternoon hours.
These systems produced snow, sleet, freezing rain, rain, strong gusty winds, and minor tidal flooding across the region.
Light snow developed from southwest to northeast during Tuesday evening between 5 p.m. and 10 p.m.  It mixed with sleet and freezing rain, first across eastern Long Island between midnight and 3 a.m. and then across the remainder of the area between 3 a.m. and 6 a.m.  By 6 a.m., a mixed bag of sleet and freezing rain occurred everywhere with temperatures around 20 degrees across Northeast New Jersey and metro New York.
As the deepening low moved more to the northeast, cold air was locked in west of the storm track.  Six hour precipitation totals between 7 a.m. and 1 p.m. were between 0.50 and 0.75 inches.  This fell as mainly plain rain across eastern Long Island and coastal Connecticut and mainly sleet with some freezing rain elsewhere.

Winter Storm in WESTERN PASSAIC, NEW JERSEY
From 13-FEB-07 20:00:00 to 14-FEB-07 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A mixture of heavy snow, sleet, and freezing rain fell across the county from late Tuesday evening, Feb. 13, through Wednesday afternoon, Feb. 14. Snow and ice totals ranged from 5 to 7 inches.

Winter Storm in HUDSON, NEW JERSEY
From 13-FEB-07 20:00:00 to 14-FEB-07 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light snow began during the late evening on Tuesday Feb. 13, then mixed with sleet and freezing rain during the early morning hours. A moderate to heavy sleet developed Wednesday morning, Feb. 14, and continued into the early afternoon before ending as some light snow. The accumulation of 2 to 4 inches of sleet caused major mass transit problems.

Winter Storm in UNION, NEW JERSEY
From 13-FEB-07 20:00:00 to 14-FEB-07 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light snow began during the late evening on Tuesday Feb. 13, then mixed with sleet and freezing rain during the early morning hours. A moderate to heavy sleet developed Wednesday morning, Feb. 14, and continued into the early afternoon before ending as some light snow. The accumulation of 2 to 4 inches of sleet caused major mass transit problems.

Winter Storm in BERGEN, NEW JERSEY
From 13-FEB-07 20:00:00 to 14-FEB-07 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light snow began during the late evening on Tuesday Feb. 13, then mixed with sleet and freezing rain during the early morning hours. A moderate to heavy sleet developed Wednesday morning, Feb. 14, and continued into the early afternoon before ending as some light snow. The accumulation of 2 to 4 inches of sleet caused major mass transit problems.

Winter Storm in ESSEX, NEW JERSEY
From 13-FEB-07 20:00:00 to 14-FEB-07 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Light snow began during the late evening on Tuesday Feb. 13, then mixed with sleet and freezing rain during the early morning hours. A moderate to heavy sleet developed Wednesday morning, Feb. 14, and continued into the early afternoon before ending as some light snow. The accumulation of 2 to 4 inches of sleet caused major mass transit problems and severe delays at Newark International Airport.