MORE: Snow predictions from 11 weather experts, some calling for up to 20 inches
Northern and central parts of New Jersey are now bracing for even more snow than originally projected as a major, prolonged nor’easter winter storm is expected to slam the state Sunday into Tuesday, possibly dropping up to 18 inches in some areas, according to updated forecasts.
Early projections of 8 to 12 inches of snow have now leapt to 12 to 18 inches in several counties, including Mercer, Middlesex, Monmouth and Morris, according to the National Weather Service. Early projections of 6 to 8 inches of snow have upped to 8 to 12 inches in Sussex and Warren counties.
Snowfall projections for Bergen, Essex and Passaic counties were between 8 and 10 inches as of Saturday morning. They also were boosted to 12 to 18 inches in a forecast map (posted below) that was updated at 4:30 p.m.
Snowfall predictions have dropped in parts of South Jersey, which could be hit mostly by a mix of snow, sleet, and rain. Projections in the Vineland area of Cumberland County fell from 6 to 8 inches to 4 to 6 inches, and the Toms River area of Ocean County fell from 6 to 8 inches to 3 to 4.
The storm could also bring coastal flooding and strong wind gusts, possibly leading to power outages. Travel is also expected to be difficult thanks to blowing and drifting snow.
The National Weather Service has placed much of New Jersey under a winter storm warning. The agency warns that road conditions are likely to be dangerous from late Sunday night through much of Monday.
“Travel could be very difficult to impossible,” according to the warnings.
Here’s a closer look at the forecast as of Saturday afternoon.
This is the latest snow forecast for most of New Jersey, eastern Pennsylvania and Delaware, updated by the National Weather Service's Mount Holly office Saturday afternoon.National Weather Service
This is the new snow forecast for northeastern New Jersey, New York City, Long Island and the Hudson Valley, updated at 4:30 p.m. Saturday, Jan. 30.National Weather Service
STORM TIMING
The heaviest amount of snow is expected in eastern Pennsylvania and central and northern New Jersey, the National Weather Service said in its 5 p.m. storm briefing. But the exact track of the storm remains uncertain. A shift could bring heavier snow farther north or south, the agency said.
Precipitation is expected to begin Sunday night into Monday morning. The snow is expected to be heaviest during the day Monday, with rates exceeding 1 inch per hour at points. The snow will likely continue into Tuesday, though accumulation will be limited by then.
STRONG WINDS
Forecasters are calling for strong winds, especially near the coast and over water, with gusts reaching 40 to 50 mph on Monday. That, they said, could lead to power outages.
Gusts inland could reach 35 to 45 mph, hindering travel with reduced visibility, as well as blowing and drifting snow.
A look at what to expect from the approaching winter storm.
FLOODING
Coastal flooding is likely and could reach moderate levels as early as Monday morning along the Atlantic coast and Delaware Bay, according to the NWS.
A coastal flood watch has been issued in coastal Ocean, eastern Monmouth, Middlesex, Ocean, southeastern Burlington and western Monmouth, effective from 7 a.m. Monday to 5 p.m. Tuesday. The watch says 1 to 2 feet of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways
A coastal flood watch has been issued in coastal sections of Atlantic and Cape May, effective from 7 a.m. Monday to 5 p.m. Tuesday.
With these types of levels, “widespread roadway flooding occurs in coastal and bayside communities and along inland tidal waterways. Many roads become impassable. Some damage to vulnerable structures may begin to occur.”
A look at possible flooding from the approaching winter storm.
WINTER STORM WARNINGS
Camden County: 10 a.m. Sunday to 10 a.m. Tuesday.
Gloucester and Salem counties: 10 a.m. Sunday to 10 a.m. Tuesday.
Burlington, Monmouth and Ocean counties: 1 p.m. Sunday to 10 a.m. Tuesday.
Hunterdon, Mercer, Middlesex, Morris, Somerset, Warren: 5 p.m. Sunday to 1 p.m. Tuesday.
WINTER WEATHER ADVISORIES
Atlantic, Cape May, Cumberland counties: 10 a.m. Sunday to 10 a.m. Tuesday.
Coastal Ocean County: 10 a.m. Sunday to 10 a.m. Tuesday.
WINTER STORM WATCHES
A winter storm watch is in effect at midnight Monday (late Sunday night) and continues through 6 a.m. Tuesday in Bergen, Essex, Hudson, Passaic and Union counties.
A winter storm watch is in effect in Sussex County from 5 p.m. Sunday to 1 p.m. Tuesday.
LIVE WEATHER RADAR
The National Weather Service is scheduled to release its next storm briefing at about 7 a.m. Sunday.
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Len Melisurgo may be reached at LMelisurgo@njadvancemedia.com.
Brent Johnson may be reached at bjohnson@njadvancemedia.com.
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