/N.J. winter storm update: Here’s the timing and latest ice, rain and wind forecast – NJ.com

N.J. winter storm update: Here’s the timing and latest ice, rain and wind forecast – NJ.com

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If you planned on any outdoor activities this weekend, hopefully you didn’t pick Saturday.

The first half of this weekend is shaping up to be a big, wet mess, with a large storm system sweeping across New Jersey and delivering a batch of heavy rain to most counties. Meanwhile, a potentially dangerous mix of rain and freezing rain will coat the northwestern region of the state.

Here’s the latest information on the storm’s timing, how much ice and rain are expected to accumulate, how strong the winds will be and what areas have the biggest risk of flooding.

STORM TIMING

Rain is expected to arrive between 2 a.m. and 8 a.m. Saturday, according to the latest forecasts from the National Weather Service.

In some northern counties — particularly Morris, Sussex and Warren — the precipitation could start as freezing rain, because temperatures on the ground will be 32 degrees or colder. With warmer temperatures in the lower atmosphere, regular raindrops will be falling, but they will quickly turn to ice when they land on cold surfaces, like trees, utility wires, cars, streets and sidewalks.

UPDATE (6:30 a.m. Saturday): As of early Saturday morning, the National Weather Service cancelled its winter weather advisory for Morris and Warren counties, as well as for Lehigh and Northampton counties in eastern Pennsylvania, because “temperatures are no longer forecast to be supportive of freezing rain.”

As surface temperatures warm up Saturday afternoon, the freezing rain should become regular rain.

Rain is expected to be heavy at times in the morning and afternoon, before tapering off Saturday night between 5 p.m. and 8 p.m. in most areas. Some light rain showers or brief snow showers could occur in northwestern sections of New Jersey after midnight and early Sunday morning, but little or no snow accumulation is expected.

NJ weather - weekend storm threat 1-25-20

Forecasters say Saturday’s storm is expected to bring a dangerous coating of ice to parts of northern New Jersey, especially in areas north of Interstate 80.National Weather Service

WINTER WEATHER ALERTS

Because of the threat of heavy ice buildup, a winter weather advisory has been issued for Morris, Sussex and Warren counties, effective from midnight until 1 p.m. Saturday. The National Weather Service said areas north of Interstate 78 run the highest risk of getting a coating of ice, ranging from one-tenth of an inch to one-quarter of an inch.

Although that might not sound like a lot of ice, it is enough to cause slick roads, tree damage and power outages.

UPDATE: As of early Saturday morning, the National Weather Service cancelled its winter weather advisory for Morris and Warren counties, as well as for Lehigh and Northampton counties in eastern Pennsylvania, because “temperatures are no longer forecast to be supportive of freezing rain.” A winter weather advisory remains in effect in Sussex County in northern New Jersey, along with Carbon and Monroe counties in eastern Pennsylvania.

NJ weather - weekend storm alerts - updated

Areas shaded in purple are under a winter weather advisory until 1 p.m. on Saturday, Jan. 25. Areas shaded in green are under a coastal flood advisory until noon. National Weather Service

FLOODING THREAT

All coastal areas, from Raritan Bay in Middlesex down to Cape May County and the Delaware Bay, are under a coastal flood advisory from 6 a.m. until noon Saturday. The most vulnerable time for flooding is during the morning high-tide cycle, the weather service said.

High tide will occur around the following times Saturday:

  • 7:20 a.m. to 7:50 a.m. along the Atlantic Ocean in Monmouth County
  • 7:30 a.m. along the Atlantic Ocean in Ocean County
  • 7:40 a.m. along the Atlantic Ocean in Atlantic County
  • 7:50 a.m. along the Atlantic Ocean in Cape May County
  • 8 a.m. along the Arthur Kill in Perth Amboy
  • 8 a.m. along Sandy Hook Bay in Sandy Hook
  • 8 a.m. along Watson Creek in Manasquan
  • 8 a.m. along Great Egg Harbor Bay in Ocean City
  • 8 a.m. in Cape May Harbor in Cape May
  • 9 a.m. along Barnegat Bay in Barnegat Light
  • 9 a.m. along the Maurice River in Bivalve

For high tide times for specific towns, check these tide tables and type the location into the search bar on top of the page.

NJ weather - weekend storm threat 1-25-20

For the second weekend in a row, a large storm system is heading for New Jersey. It is expected to deliver heavy rain along with some freezing rain in several northern counties.National Weather Service

HEAVY RAIN

The storm is expected to drop a solid inch of rain over most areas of New Jersey, with some places getting as much as 1.5 inches. In addition to the coastal flooding, forecasters said drivers could encounter flooding on some streets with bad drainage.

GUSTY WINDS

Although no formal wind advisories are active as of late Friday, forecasters expect some winds to be gusting to 25 to 30 mph Saturday across New Jersey during the storm. Winds will be even stronger over the ocean, where gale-force winds up to 35 knots (40 mph) are likely to be blowing.

CURRENT WEATHER RADAR

MAIN STORM THREATS

NJ weather - weekend storm threats 1-25-20

Len Melisurgo may be reached at LMelisurgo@njadvancemedia.com. Follow him on Twitter @LensReality or like him on Facebook. Find NJ.com on Facebook.


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