A winter weather advisory was issued in Bergen, Essex, Hudson, Hunterdon, Morris, Passaic, Sussex, Union and Warren counties for 10 a.m. Saturday to 1 a.m. Sunday.
The storm is expected to be heaviest in the mid-to-late afternoon, forecasters say.
In Somerset County, less than a half-inch of snow is expected, the NWS said.
Snow is expected to turn to sleet and rain by Saturday evening as temperatures rise to 40 by midnight.
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