N.J. weather forecast: Nor'easter is a rain, not snow, event | Science updates | NewJerseyNewsroom.com -- Your State. Your News.

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N.J. weather forecast: Nor'easter is a rain, not snow, event

noreaster110612_optBY STEVEN DiMARTINO
NEWJERSEYNEWSROOM.COM

High pressure over northern New York this morning produced perfect conditions for powerful radiational cooling, leading to temperatures crashing into the lower to mid 20's over the interior and upper 20's to lower 30's along the coast. The chilly conditions and clear skies will give way to increasing clouds as a storm organizes off the North Carolina coast. Winds will develop from the north at 5 to 10 mph with temperatures rebounding into the lower to mid 40's over the interior and mid to upper 40's along the coast for highs.

An area of low pressure will develop off the North Carolina coast by tomorrow morning and track to the east-northeast towards the New England coastal waters. Clouds will increase overnight with winds veering to the northeast at 5 to 15 mph. Temperatures will fall into the mid to upper 20's over the interior and lower to mid 30's along the coast for morning lows tomorrow.

As the storm approaches, rain will develop in the late afternoon and evening hours tomorrow. As the rain spreads north, snow will mix in for locations to the northwest of the Philadelphia and New York City metropolitan areas. Winds will be from the northeast at 10 to 20 mph with gusts up to 40 mph. Temperatures will rise into the lower to mid 40's for highs throughout the Philadelphia and New York City metropolitan areas.

The worst impacts from the storm will be from tomorrow evening on through Thursday morning. The rain will become heavy at times along the coast with winds increase to 15 to 30 mph with gusts up to 50 mph expected. Minor to moderate coastal flooding will be a threat along the coast with tides one to three feet above expected high tides with the most significant high tide early on Thursday morning. Meanwhile, the rain will change over to snow over the interior with accumulations of one to three inches expected over portions of eastern Pennsylvania, northwestern New Jersey, the Hudson Valley, and Connecticut. Details on snow and rain impacts can be found here.

The rain may mix with or even change over to snow along the coast before ending but no accumulation is expected. Temperatures will crash into the lower to mid 30's over the interior and mid to upper 30's along the coast on Thursday morning and rebound into the lower to mid 40's over the interior and mid to upper 40's along the coast for highs on Thursday afternoon.

High pressure will take hold by Thursday night and remain in control through Monday with excellent weather conditions. A pleasant break in the active weather pattern can be expected with temperatures moderating nicely over the forecast period. Temperatures on Friday will range from the lower to mid 30's for lows and upper 40's to mid 50's for highs. However, for Saturday through Monday, temperatures will warm to above normal levels with lows in the upper 30's to mid 40's and highs in the upper 50's to mid 60's throughout the Philadelphia and New York City metropolitan areas.

 

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