A shifting winter storm that had forecasters repeatedly revising predictions overnight and this morning is underway in New Jersey with the latest update calling for 6 to 12 inches of snow across the northern half of the state and at least some snow falling Tuesday throughout southern counties.
An updated forecast map issued at 6:15 a.m. by the National Weather Service significantly expanded the area that could see 8 to 12 inches of snow to include much of area north of I-78 including Sussex, Warren, Morris, Union, Essex, Bergen and Hudson counties.
In addition, some counties south of I-195 could get between 2 and 4 inches of snow in the latest forecast, with lighter amounts farther south.
Rain will continue to shift to snow in central New Jersey through the morning.
Hundreds of schools have announced closures or delayed openings throughout the state. New Jersey instituted a commercial vehicle ban starting at midnight, and state offices will have a delayed opening Tuesday at 10 a.m., Gov. Phil Murphy announced.
Snow is expected to continue falling “until midday” before quickly ending and with some peaks of sun possible later this afternoon, the National Weather Service said.
Travel on roads is expected to be difficult and power outages are possible as a result of a wet, heavy snow and gusty winds that along the Jersey Shore might reach as high as 45 mph.
A winter storm warning is in effect for 13 counties on Tuesday: Bergen, Essex, Hudson, Hunterdon, Mercer, Middlesex, Morris, Passaic, Somerset, Sussex, Union, Warren and western Monmouth.
Winter weather advisories were issued for several other counties.
In addition, coastal flood warnings have been issued in Atlantic, Burlington, Cape May, Middlesex, Monmouth and Ocean counties, and wind advisories have been issued in coastal sections of Atlantic, Cape May, Monmouth and Ocean — where winds could gust as high as 45 mph during Tuesday’s storm.
AccuWeather.com is calling for 6 to 12 inches in northwestern New Jersey and amounts of up to 6 inches elsewhere.
NJ Transit is cross honoring rain, bus and private bus tickets on Tuesday due to the weather. More than 400 flights out of Newark Liberty, Laguardia, John F. Kennedy and Philadelphia airports have been canceled, according to FlightTracker.com.
Winter storm warnings
Hunterdon, Somerset, Middlesex, western Monmouth, Mercer: 4 to 8 inches of snow with winds gusting as high as 35 mph are expected. The storm warning runs until 3 p.m.
Sussex, Warren and Morris: 6 to 8 inches of snow. More than 1 inch per hour could fall during the morning rush. The storm warning expires at 3 p.m.
Hudson, eastern Passaic, eastern Bergen, Essex and Union: 5 to 8 inches of snow is in the forecast. The storm warning lapses at 6 p.m.
Western Passaic, western Bergen: 4 to 7 inches of snow is expected. The storm warning carries until 6 p.m.
Winter weather advisories
Eastern Monmouth, Salem, Gloucester, Camden, northwestern Burlington and Ocean: 1 to 4 inches of wet snow along with wind gusts as high as 45 mph until 3 p.m.
In Atlantic and Cape May counties, 1 to 1.5 inches of rain are expected with wind gusts of up to 30 mph.
For the rest of the state, temps that flirt with 40 will lead to some snow melting but anything left untreated will freeze overnight as temperatures fall into the 20s, the weather service said.
Expect dry days with some sun on Wednesday and Thursday. Temperatures will be in the mid to upper 30s to about 40 on Wednesday and the low 40s to mid 40s on Thursday. Some rain and light snow is possible Thursday night into Friday but no accumulation is expected
Current weather radar
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Jeff Goldman may be reached at firstname.lastname@example.org.