A period of freezing rain affected most of New Jersey (except the southeast part of the state) on the 5th and caused hazardous traveling conditions on untreated roadways.  Numerous accidents were reported along Interstate 78 in northern New Jersey. Ice accumulations averaged around one tenth of an inch with the highest amounts in and around Mercer County. Precipitation started briefly as sleet before transitioning to freezing rain and then eventually plain rain. Freezing rain occurred during the morning of the 5th in the Philadelphia suburbs of southwest New Jersey. The freezing rain occurred from the late morning through the early evening of the 5th in central New Jersey and the Raritan Basin. In northwest New Jersey, the freezing rain occurred from the afternoon into the evening of the 5th. In all areas, precipitation changed to plain rain before ending.
Representative ice accumulations included two tenths of an inch in Hopewell Township (Mercer County) and around one-twentieth of an inch (0.05) in Lumberton (Burlington County) and Somerville (Somerset County). The freezing rain was caused by the return flow off the Atlantic Ocean assisted by a weak stationary front over the Middle Atlantic States.  While the air mass aloft warmed, the arctic air mass in place near the surface kept temperatures below freezing as precipitation moved through.

Winter Weather in SUSSEX, NEW JERSEY
From 05-JAN-14 15:00:00 to 05-JAN-14 23:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winter Weather in MORRIS, NEW JERSEY
From 05-JAN-14 13:00:00 to 05-JAN-14 22:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in WARREN, NEW JERSEY
From 05-JAN-14 12:00:00 to 05-JAN-14 21:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in WESTERN OCEAN, NEW JERSEY
From 05-JAN-14 09:00:00 to 05-JAN-14 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in MIDDLESEX, NEW JERSEY
From 05-JAN-14 10:00:00 to 05-JAN-14 15:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in SOMERSET, NEW JERSEY
From 05-JAN-14 10:00:00 to 05-JAN-14 20:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Winter Weather in HUNTERDON, NEW JERSEY
From 05-JAN-14 09:00:00 to 05-JAN-14 20:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in WESTERN MONMOUTH, NEW JERSEY
From 05-JAN-14 09:00:00 to 05-JAN-14 12:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Winter Weather in MERCER, NEW JERSEY
From 05-JAN-14 06:00:00 to 05-JAN-14 13:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winter Weather in NORTHWESTERN BURLINGTON, NEW JERSEY
From 05-JAN-14 07:00:00 to 05-JAN-14 11:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Winter Weather in CAMDEN, NEW JERSEY
From 05-JAN-14 06:00:00 to 05-JAN-14 11:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in GLOUCESTER, NEW JERSEY
From 05-JAN-14 06:00:00 to 05-JAN-14 11:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Winter Weather in SALEM, NEW JERSEY
From 05-JAN-14 06:00:00 to 05-JAN-14 11:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet