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    Flash Flood Threat Shifts into Tennessee Valley, Southeast

    By By Bill Deger, Meteorologist
    May 14, 2012, 4:42:19 AM EDT

    After producing wind damage and flash flooding across Mississippi, a storm system and its flooding downpours will have its eyes focused on the Tennessee Valley and parts of the Southeast today.

    Residents and visitors to resort towns along the central Gulf Coast and points north will also have to don the rain gear the rest of this weekend.

    While the rain is needed to relieve drought conditions across the Florida Panhandle, many areas will get too much in a short amount of time.

    "Some of the rain over the lower Mississippi Valley could be heavy enough to cause flash and urban flooding incidents," says AccuWeather.com Senior Meteorologist Dave Samuhel.

    Contributing to the flood potential will be additional rainfall amounts of 1 to 3 inches through Monday, expected to fall over a wide area from Alabama northward through Tennessee and Kentucky, not to mention parts of Georgia and the western Florida Panhandle.

    Areas that experience slow-moving thunderstorms could have as much as 4 or 5 inches of rain, with most of that falling within a couple hours' time.


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    Residents in Nashville, Tenn. and Birmingham, Ala. are in for a rainy 12-18 hours, with enough rain to cause flooding in low-lying and poor-drainage areas, as well as some small streams, creeks and canals.

    Similar to what happened Saturday, a few of the thunderstorms that form could turn severe, with hail and damaging winds possible. An isolated tornado or offshore waterspout cannot be ruled out either.

    "On Sunday, the heaviest rain will shift away from Louisiana towards portions of northern Florida that desperately need the rain," says Samuhel.

    "Downpours will even reach as far north as portions of the Ohio Valley."

    The result will be a damp Mother's Day for a large part of the nation from the southern Plains to the Southeast and north into the Ohio Valley and parts of the mid-Atlantic.

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