Coastal South Jersey’s storm; Winter Weather Advisory in effect

     The National Weather Service's snowfall forecast.

    The National Weather Service's snowfall forecast.

    A powerful storm will deliver a glancing blow to southern coastal sections of New Jersey Tuesday afternoon through early Wednesday as it passes well offshore on its way toward the Canadian Maritimes. 

    The National Weather Service has issued a Winter Weather Advisory for Cumberland, Cape May, Atlantic, Ocean, and southeastern Burlington counties. 

    The advisory is in effect from 4 p.m. Tuesday until 2 a.m. Wednesday. Forecasters expect two to four inches of snow.

    “Periods of rain and snow will develop toward midday. Any rain or mixed rain and snow will then change to all snow by evening, and the snow could fall moderate at times this evening before ending overnight,” the advisory states. “Roadways should be wet during the daylight hours today as temperatures are expected to rise above freezing as the precipitation moves in. As temperatures drop later this afternoon and especially this evening, combined with a steady snow, untreated surfaces will become slippery and potentially snow covered. Remember, bridges and elevated surfaces tend to ice up first.”

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    Winds out of the east to northeast will increase to 10 to 15 mph, with gusts up to 25 mph, according to the advisory. 

    Outside of the advisory area, forecasters expect snowfall totals on grassy surfaces to range from under an inch along and north of Interstate 78 to between one and two inches over the remainder of the region south of Interstate 78.

    But there is a chance that snowfall amounts in the advisory area will increase, Gary Szatkowski, head meteorologist at the National Weather Service office in Mount Holly, NJ, tweeted this morning:

    “If the low tucks in closer to the coast for awhile, then our impacts from the storm increase. Continue to monitor the forecast. Advisories for snow may need to be upgraded to warnings.”

    By sunrise Wednesday, any remaining flurries will give way to a mixture of sun and clouds, and it will be blustery, with temperatures 10 to 15 degrees below normal, according to the National Weather Service.

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