A winter storm dropped heavy snow in Northwest New Jersey and a mixture of snow, sleet and freezing rain in the central and southwest part of New Jersey on the evening of the 23rd into the morning of the 24th.  Overall less wintry precipitation (a faster switch to rain) occurred progressively farther to the south and southeast in the state. Snowfall averaged 5 to 9 inches in northwest New Jersey; 2 to 5 inches in central New Jersey and less than two inches across southwest New Jersey. No snow fell in southeast New Jersey.  Ice accumulations were generally around a trace. The snow caused traveling difficulties as well as postponement of social activities on the 24th. There were over 100 reported accidents in the state. The snow and accidents caused about 2,000 homes and businesses to lose power. New Jersey Transit cross-honored all commuting tickets. The onshore flow from the winter storm also caused minor tidal flooding in southern New Jersey during the morning high tide cycle on the 24th.
Precipitation started as snow on the evening of the 23rd from southwest New Jersey northward between 9 p.m. EST and Midnight EST. In Northwest New Jersey, the snow fell at its heaviest during the pre-dawn hours on the 24th and ended between 8 a.m. EST and 10 a.m. EST on the 24th. In the Raritan Valley, snow also fell at its heaviest during the pre-dawn hours on the 24th, but then changed to freezing rain and sleet between 4 a.m. EST and 6 a.m. EST on the 24th. Precipitation in some areas changed to plain rain before ending later that morning.  In the central third of New Jersey, a change to rain (with some sleet at the transition time) worked its way to the northwest from coastal areas and occurred  between 1 a.m. EST and 5 a.m. EST on the 24th and remained rain until it ended around 8 a.m. EST on the 24th.
The winter storm and wintry weather caused numerous accidents.  In Burlington County, In Mansfield Township, U.S. Route 206 was closed in both directions because a vehicle struck and knocked down a pole. In Warren County, in Washington Township, all lanes of New Jersey State Route 57 were closed in both directions because of an accident. In Monmouth County, in Freehold Township, a knocked down traffic signal caused a lane blockage on New Jersey Business Route 33.  Accidents were reported along Interstate 195. A couple of accidents were reported on the New Jersey Turnpike in the central part of the state. Speed restrictions were in place throughout the entire length of the Garden State Parkway and the northern half of the New Jersey Turnpike. Speed restrictions were also in place on all of the major bridges crossing the Delaware River in and around Philadelphia. Throughout the state, about 20 high schools postponed SAT testing.
Representative snowfall included 9.0 inches in Highland Lakes (Sussex County), 8.0 inches in Marcella (Morris County), 7.5 inches in Basking Ridge (Somerset County), Allamuchy (Warren County)  and Newton (Sussex County), 7.2 inches in Wantage (Sussex County), 7.1 inches in Blairstown (Warren County), 6.9 inches in Rockaway (Morris County), 6.8 inches in Clinton (Hunterdon County),  6.5 inches in Parsippany (Morris County) and Greenwich Township (Warren County), 6.2 inches in Whitehouse Station (Hunterdon County), 6.0 inches in Montgomery Township (Somerset County), 5.5 inches in Lawrenceville (Mercer County) and Readington Township (Hunterdon County), 5.0 inches in Ewing (Mercer County) and Metuchen (Middlesex County), 4.3 inches in Freehold (Monmouth County), 4.0 inches in Cranbury (Middlesex County), 3.2 inches in Howell (Monmouth County), 3.0 inches in Bordentown (Burlington County), 2.7 inches in Brick Township (Ocean County), 2.5 inches in Long Branch (Monmouth County), 2.2 inches in Mount Holly (Burlington County), 1.5 inches in Haddon Heights (Camden County) and Toms River (Ocean County), 1.4 inches in Tabernacle (Burlington County) and 1.0 inch in National Park (Gloucester County).
The onshore flow caused by the low pressure system resulted in minor tidal flooding during the high tide cycle on the morning of the 24th along coastal sections of Atlantic and Cape May Counties. The high tide in Atlantic City (Atlantic County) reached 6.32 feet above mean lower low water. Minor tidal flooding starts at 6.00 feet above mean lower low water. The high tide at the Cape May Ferry Terminal (Cape May County) reached 6.86 feet above mean lower low water. Minor tidal flooding starts at 6.70 feet above mean lower low water.
The winter storm was caused by a low pressure system which moved along the northern Gulf of Mexico on the evening of the 22nd through the morning of the 23rd. It then started to track to the northeast and was in southeast Alabama on the afternoon of the 23rd and moved through southern Georgia overnight on the 23rd. A second low pressure system formed on its warm front that same night in South Carolina. This would become the primary low pressure system as it too tracked to the northeast. At 1 a.m. EST on the 24th, it was located near Norfolk, Virginia, 7 a.m. EST on the 24th over the Delmarva coastal waters as it started to intensify rapidly. At 1 p.m. EST on the 24th, the low pressure system was already southeast of Long Island, New York and would pass near Nantucket, Massachusetts later that afternoon. The lack of a high pressure system north of the system spared coastal and southern sections of New Jersey from also receiving heavy snow.

Heavy Snow in SUSSEX, NEW JERSEY
From 24-JAN-15 00:00:00 to 24-JAN-15 09:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in HUNTERDON, NEW JERSEY
From 23-JAN-15 23:00:00 to 24-JAN-15 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Storm in SOMERSET, NEW JERSEY
From 23-JAN-15 23:00:00 to 24-JAN-15 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in CAMDEN, NEW JERSEY
From 23-JAN-15 21:00:00 to 24-JAN-15 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in NORTHWESTERN BURLINGTON, NEW JERSEY
From 23-JAN-15 21:00:00 to 24-JAN-15 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WESTERN OCEAN, NEW JERSEY
From 23-JAN-15 21:00:00 to 24-JAN-15 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in EASTERN OCEAN, NEW JERSEY
From 23-JAN-15 21:00:00 to 24-JAN-15 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in MERCER, NEW JERSEY
From 23-JAN-15 22:00:00 to 24-JAN-15 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in MIDDLESEX, NEW JERSEY
From 23-JAN-15 23:00:00 to 24-JAN-15 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WESTERN MONMOUTH, NEW JERSEY
From 23-JAN-15 23:00:00 to 24-JAN-15 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in EASTERN MONMOUTH, NEW JERSEY
From 23-JAN-15 23:00:00 to 24-JAN-15 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in GLOUCESTER, NEW JERSEY
From 23-JAN-15 21:00:00 to 24-JAN-15 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in SALEM, NEW JERSEY
From 23-JAN-15 20:00:00 to 24-JAN-15 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in MORRIS, NEW JERSEY
From 24-JAN-15 00:00:00 to 24-JAN-15 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Snow in WARREN, NEW JERSEY
From 23-JAN-15 23:00:00 to 24-JAN-15 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter