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    East Re-Surging Heat Will Not Last

    July 26, 2010; 11:35 AM ET
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    Temperatures and humidity levels will climb back to steamy levels at midweek in the East, but it won't last as another push of cooler, less humid air will arrive ahead of the coming weekend.

    Thunderstorms broke the deadly heat wave Sunday along the Atlantic Seaboard.

    Once again, thunderstorms and an associated cool front are expected to break the back of a mini heat wave set for the middle of the week in the I-95 zone and other areas of the mid-Atlantic.

    The front and its showers and thunderstorms are expected to roll through the Great Lakes region Wednesday. Some storms may survive the overnight hours, reaching the northern Appalachians and the Ohio Valley by Thursday morning.

    The storms should get new life from daytime heating along the Atlantic Seaboard Thursday afternoon.

    High pressure will approach on a northwesterly flow of air Thursday and should stick around Friday into the weekend in most places.

    Sunshine ablaze in the haze in this AP photo taken Friday, July 23, 2010 in Washington, D.C.

    Here We Go Again

    Even though temperatures were shaved by 10 to 15 degrees this past Sunday afternoon, a southwest flow will allow temperatures and humidity to build Tuesday into Thursday.

    According to WPVI-TV and AP, the weekend heat claimed the lives of four people in the Philadelphia area alone.

    Extreme heat is one of the leading causes of weather-related deaths in the U.S. annually, according to the Center for Disease Control (CDC).

    Fortunately, the midweek swelter will not be as extreme as that experienced by tens of millions this past weekend.

    However, hot is hot and fans and air conditioners will get a workout for a several-day stretch. Highs will be close to 90 in the New York City-Philadelphia area on one or more days.

    Temperatures will surge into the middle 90s south of the Mason-Dixon line to North Carolina.

    Unfortunately, for the Deep South, no relief is in sight for the sweltering conditions. Temperatures in Birmingham, Ala., have averaged 4.5 degrees above normal for the month so far. The normal high in the Magic City in late July is 90 degrees.

    Combined with increasing humidity levels, conditions will reach the danger zone all over again as far north as southern New England.

    In the meantime, Tuesday through Thursday, people are urged to avoid direct exposure to the sun and strenuous activity during the afternoon, when temperatures are also at their highest levels.

    Be sure to drink plenty of liquids to stay hydrated.

    While, the elderly and young children are most susceptible to hyperthermia, it can occur at all ages.

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