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    Elliot Abrams

    Humid and Showery at Times in the Northeast

    By Elliot Abrams, AccuWeather chief meteorologist
    7/22/2013, 3:15:40 AM

    Monday 9 AM

    Early this morning, there were spotty showers from northeastern Pennsylvania into New England. However, most of the area was rain-free.

    More concentrated showers and thunderstorms extended from extreme southern Michigan south through Indiana, central and western Ohio... and on southwest to western parts of Kentucky and Tennessee. That area of showers and thunderstorms precedes a cold front that will move off the East Coast on Wednesday. Until the front arrives, most places will have high humidity, but a more comfortable air mass follows the front.

    In a weather pattern like this, there tends to be a daily cycle featuring an increase in showers and thunderstorms in the afternoon and evening hours, then a decrease overnight. The increase occurs in response to daytime heating.

    Another frontal system should move through the Great Lakes, Ohio Valley and then the Middle Atlantic states in the period from Friday through Sunday. This video has more:


    590x462_07221113_pantmp2013-07-22_06-35-30

    This map shows an east-west front that divides hot weather to the south from somewhat cooler air to the north. As the front drifts north, some showers and thunderstorms will break out. The front will shift south on Wednesday, allowing less humid air to filter into most of the Northeast and Middle Atlantic states.

    The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or AccuWeather.com

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    Elliot Abrams