A vigorous cold front and a rapidly intensifying low pressure system east of the Delmarva Peninsula combined to drop 2 to 5 inches of snow across most of New Jersey (with some locally higher amounts in Ocean and Monmouth Counties) from the late morning on the 14th into the morning on the 15th. Snow fell moderate to heavy at times during the evening and overnight on the 14th. Coupled with rapidly falling temperatures and increasing winds, the snow made for hazardous driving conditions on untreated roadways on this Valentine's Day and overnight.
The snow started during the late morning in Sussex County and during the first half of the afternoon elsewhere in the state on the 14th. The snow fell in bands, so there were breaks in the snow heading into the evening. The heaviest band of snow preceded and accompanied the cold frontal passage itself during the evening of the 14th. Snowfall rates during this band easily reached one to three inches per hour. Additional snow fell overnight, especially in the central part of the state. Clean-up was complicated by increasingly stronger winds as the night progressed. The snow ended during the pre-dawn hours on the 15th, but fell into the morning across the central third of the state.
Speed limits on Delaware River bridges into and around Philadelphia as well as on the Garden State Parkway and New Jersey Turnpike were reduced.  A traffic accident on County Route 537 in Freehold knocked down a utility pole. Numerous accidents were reported along coastal New Jersey as temperatures plunged well below freezing and many roadways iced before drying.
Representative snowfall included 6.5 inches in Colts Neck (Monmouth County), 5.0 inches in Berkeley Township (Monmouth County), 4.7 inches in Belmar (Monmouth County), 4.5 inches in East Windsor (Mercer County), 4.0 inches in Freehold (Monmouth County), Clinton (Hunterdon County), Franklin Township (Somerset County), Bayville (Ocean County), Magnolia (Atlantic County), Ewing (Mercer County), Atco (Camden County)  and Hainesport (Burlington County), 3.7 inches in Readington Township (Hunterdon County), 3.5 inches in Pitman and West Deptford Township (Gloucester County), Jackson Township (Ocean County) and New Brunswick (Middlesex County), 3.3 inches in Somerdale (Camden County) and Newport (Cumberland County), 3.1 inches in Stewartsville (Warren County), 3.0 inches in Wantage (Sussex County), South River (Middlesex County), Lanoka Harbor (Ocean County) and Marcella (Morris County), 2.7 inches in Upper Deerfield Township (Cumberland County), 2.5 inches in Moorestown (Burlington County), Sparta Township (Sussex County), Hillsborough Township (Somerset County) and Wildwood Crest (Cape May County), 2.3 inches at the Atlantic City International Airport and Woodstown (Salem County), 2.0 inches in Estell Manor (Atlantic County) and Merchantville (Camden County) and 1.5 inches in Quinton (Salem County) and Middle Township (Cape May County).
The snow was caused by a strong cold front that moved from Lake Erie on the morning of the 14th rapidly southeast and crossed the Pennsylvania Allegheny Mountains during the middle of the afternoon on the 14th. A new low pressure system was forming on this front and at 7 p.m. EST as the front moved through the Susquehanna Valley and western Maryland, a 996 millibar low pressure system was intensifying near Washington, D.C. The cold front and the low pressure system then quickly crossed the state and at 10 p.m. EST that evening, the front and 994 millibar low pressure system were off the Delaware coast. The upper air low pressure system passed through New Jersey overnight and this helped prolong the snow into the morning of the 15th. At 7 a.m. EST on the 15th, a 978 millibar surface low pressure system was occluding south of Nantucket, Massachusetts.

Winter Weather in WESTERN ATLANTIC, NEW JERSEY
From 14-FEB-15 14:00:00 to 15-FEB-15 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in EASTERN ATLANTIC, NEW JERSEY
From 14-FEB-15 14:00:00 to 15-FEB-15 05:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in NORTHWESTERN BURLINGTON, NEW JERSEY
From 14-FEB-15 13:00:00 to 15-FEB-15 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Winter Weather in SOUTHEASTERN BURLINGTON, NEW JERSEY
From 14-FEB-15 13:30:00 to 15-FEB-15 04:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in CAMDEN, NEW JERSEY
From 14-FEB-15 13:00:00 to 15-FEB-15 04:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in GLOUCESTER, NEW JERSEY
From 14-FEB-15 13:00:00 to 15-FEB-15 03:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in CUMBERLAND, NEW JERSEY
From 14-FEB-15 13:30:00 to 15-FEB-15 00:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in EASTERN CAPE MAY, NEW JERSEY
From 14-FEB-15 14:00:00 to 15-FEB-15 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WESTERN CAPE MAY, NEW JERSEY
From 14-FEB-15 14:00:00 to 15-FEB-15 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in HUNTERDON, NEW JERSEY
From 14-FEB-15 13:00:00 to 15-FEB-15 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in MERCER, NEW JERSEY
From 14-FEB-15 13:30:00 to 15-FEB-15 07:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Winter Weather in MIDDLESEX, NEW JERSEY
From 14-FEB-15 13:30:00 to 15-FEB-15 08:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Winter Weather in WESTERN MONMOUTH, NEW JERSEY
From 14-FEB-15 15:00:00 to 15-FEB-15 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in EASTERN MONMOUTH, NEW JERSEY
From 14-FEB-15 15:00:00 to 15-FEB-15 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WESTERN OCEAN, NEW JERSEY
From 14-FEB-15 14:00:00 to 15-FEB-15 08:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in EASTERN OCEAN, NEW JERSEY
From 14-FEB-15 14:00:00 to 15-FEB-15 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in MORRIS, NEW JERSEY
From 14-FEB-15 12:00:00 to 15-FEB-15 07:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in SUSSEX, NEW JERSEY
From 14-FEB-15 11:00:00 to 15-FEB-15 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in WARREN, NEW JERSEY
From 14-FEB-15 11:30:00 to 15-FEB-15 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in SALEM, NEW JERSEY
From 14-FEB-15 13:00:00 to 15-FEB-15 02:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Winter Weather in SOMERSET, NEW JERSEY
From 14-FEB-15 13:30:00 to 15-FEB-15 08:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media