Elliot Abrams

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Showers to Dampen the Northeast

May 21, 2012; 7:26 AM

Monday 10 a.m.

Tropical Storm Alberto formed off the south Atlantic coast during the weekend but it is not having any direct impact in the Northeast. However, with a high pressure area retreating from northern New England and a low pressure area over southeastern Virginia, an east to southeast flow of increasingly moist air is affecting the region. At 8:30 this morning, a band of heavy rain with embedded thunderstorms stretched from northwest New Jersey to the waters east of Monmouth County, N.J. Many places between Newark and Somerville, N.J., had more than half an inch of rain in just a few hours this morning. Closer to Philadelphia, there was nothing. However, a large batch of rain and thunderstorms was just off the coast of southern New Jersey and was moving northwestward.

This video should give you an idea about what to expect during the course of the week. One trend we expect is for showers and thunderstorms to become more spotty as we go through the middle of the week, and for most of them to occur during the afternoon and evening hours.

This map showed the pressure pattern at 9 a.m. EDT Monday. You can see the east to southeast flow that was bringing ocean air ashore in the Northeast. Also, the NNE-SSW orientation of the isobars was causing clouds to linger on and near the west shore of Lake Michigan.

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About This Blog

Elliot Abrams
Elliot Abrams from AccuWeather.com offers this Northeast Weather Blog for the U.S. with regular updates on NE weather from a leading forecaster and meteorologist.