PHILADELPHIA (CBS) – A winter storm that has blanketed parts of the South is heading towards the Delaware Valley.

Philadelphia, its surrounding suburbs and parts of Southern New Jersey are expected to get between 4 to 8 inches of snow.

The snow will begin falling between 4 p.m. and 7 p.m. Tuesday. The heaviest snow is expected to come down between midnight and 4 a.m. The snowfall should come to an end by 9 a.m. on Wednesday.

A winter storm warning goes into effect for for Philadelphia and it suburbs at 2 p.m. and lasts until 9 a.m. Wednesday.