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    Severe Thunderstorm Complexes Continue to Plague the Midwest

    By By Alex Sosnowski, Expert Senior Meteorologist
    June 21, 2010, 11:01:39 AM EDT

    The greatest risk of severe thunderstorms will again focus over part of the middle Mississippi Valley, spanning areas from the central Plains to the northern Ohio Valley states into Tuesday.

    The strongest thunderstorms will bring potential for damaging wind gusts, hail and isolated tornadoes, especially from portions of Iowa to northern Missouri and Illinois.

    Look for isolated thunderstorms from the afternoon hours to organize into groups or lines during the evening. The storms will tend to cover a considerably greater amount of ground as a result, than if they remained widely separated.


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    States stretching from the southern Canada border to the central High Plains, eastward through western Pennsylvania, with time will be visited by locally severe thunderstorms.

    While thunderstorms over the upper Ohio Valley are in the weakening stages Monday evening, new storms will cover more ground Tuesday over Ohio, West Virginia, southern Michigan, southwestern Ontario and western Pennsylvania.


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    Many of the downpours from the storms are falling on the saturated ground of the Plains which will immediately run off rapidly, bringing streams out of their banks. In turn, motorists should expect road closures and, in the worse case scenario, road washouts.

    The repeating heavy rainfall is taking its toll on some of the rivers over the northern and central Plains as well.

    Related to the Story: North Central Radar Visit our Facebook Fan Page Follow us on Twitter Breaking Weather Extreme Weather with Henry Margusity

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