After a break in the wet weather on Saturday — and mild temperatures in the afternoon — another storm system will be heading to New Jersey on Sunday, and this one could dump a few inches of snow on hilly areas of the state’s northern counties, forecasters said.
Although most of the Garden State will likely get all rain from Sunday’s storm, temperatures should be cold enough in some northern and western sections to support some periods of snow and sleet Sunday morning and Sunday night into early Monday morning, the National Weather Service said.
The weather service’s New York regional office, which handles northeastern New Jersey, says 3 to 4 inches of snow could accumulate in western Passaic County, with a light coating of snow possible in Bergen, Essex, Hudson and Union counties.
The agency’s Mount Holly office, which handles 16 of New Jersey’s 21 counties, is calling for a mix of snow and sleet in Sussex County, with possible accumulations of 2 to 4 inches in high-terrain areas and lighter accumulations in the valleys.
As of early Saturday morning, no formal winter weather advisories had been issued, but the weather service noted in a hazardous weather outlook that light snow and sleet could accumulate in Morris and Warren counties Sunday night, and a period of freezing rain could occur in Hunterdon and Somerset counties.
Before Sunday’s storm system arrives, New Jersey will be seeing the morning clouds break, with partly to mostly sunny skies Saturday afternoon and temperatures rising into the low 50s in northern counties and upper 50s in southern counties.
That’s 10 to 15 degrees warmer than usual for early January.
Sunday’s storm timing
In its Saturday forecast discussion, the National Weather Service’s Mount Holly office says light precipitation is expected to arrive from the southwest early Sunday morning, “with its leading edge nearing a Reading to Philadelphia to Atlantic City line around daybreak on Sunday. The precipitation will expand into the remainder of eastern Pennsylvania and New Jersey on Sunday morning and it should continue into Sunday evening before pulling away to our northeast and east late on Sunday night.”
Although a brief period of freezing rain is possible at the onset for parts of Hunterdon and Somerset counties, “any freezing rain should change quickly to rain as temperatures there rise slowly above the freezing mark,” the weather service says.
In areas along and to the north of the Interstate 78 corridor, the weather service is expecting a wintry mix of snow, sleet and possibly freezing rain. “The mix should change to all rain in the valleys during the afternoon with only a light accumulation of snow and/or ice expected there,” the agency says.
Updates on Sunday’s storm system will be posted on NJ.com as more details become available.
Current weather radar
Our journalism needs your support. Please subscribe today to NJ.com.