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    Foot of Rain, Flooding Potential From Houston to New Orleans

    By By Alex Sosnowski, senior meteorologist.
    May 28, 2014, 5:18:47 PM EDT

    Torrential rain and the risk of flooding will continue to focus over the swath between Houston and New Orleans through the end of the week.

    On Tuesday, heavy rain and locally severe thunderstorms impacted Houston, Dallas, Austin and San Antonio, Texas, Shreveport and Lake Charles, Louisiana, and Texarkana, Arkansas.


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    Portions of eastern Texas, including Houston, have received more than 10 inches of rain for the month of May, which is more than double the average amount for the month.

    Houston has been hit with drenching, gusty thunderstorms three days in a row, including Memorial Day. Both Tuesday and Wednesday morning, storms brought torrential rainfall. Up to 2 inches of rain fell in 20 minutes in part of the Houston area Wednesday morning.


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    On Wednesday, the drenching storms will persist over parts of eastern Texas, while repeating locally gusty thunderstorms spread farther east in Louisiana, eastern Arkansas, Mississippi and western Tennessee. As the amount of rain trends upward in this area, the risk of flash and urban flooding will increase.

    Since the start of Wednesday, more than 4 inches of rain has fallen on portions of Louisiana.

    RELATED:
    Eastern Texas Interactive Radar
    AccuWeather.com Severe Weather Center
    NOAA: 2014 Atlantic Hurricane Season Likely Below Normal

    A small number of the strongest thunderstorms have the potential to allow brief tornadoes to occur. The tornadoes could occur as heavy rain is falling, which will make them hard to see ahead of time.

    The storm system will continue to bring heavy rainfall and the potential for flooding through the end of the week over a large part of the South Central states. Locally, a foot of rain can fall with the storm system.


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    This is the same storm system that delivered heavy rain to parts of the southern and central High Plains late last week into the Memorial Day weekend.

    While long-term drought conditions continue over much of this area, the rainfall is a big step in the right direction.

    May 2014 Rainfall (1st-27th)

    Location
    Rainfall (Inches)
    Amarillo, Texas
    3.55
    San Angelo, Texas
    7.75
    Lubbock, Texas
    5.23
    Midland, Texas
    2.26
    Roswell, N.M.
    4.45
    Oklahoma City
    4.44
    San Antonio
    4.97
    Houston
    8.60
    Victoria, Texas
    6.81

    Additional rain fell on much of eastern Texas Wednesday morning.

    Some areas such as Limon, Colorado; Gage, Oklahoma; Dodge City, Kansas; and Wichita Falls, Texas, managed to receive significantly less rain than their neighbors. Less than 1 inch of rain fell over the duration of the event.

    However, much more rain is needed over the summer throughout the central and southern High Plains, but that rain should come.

    According to AccuWeather Long-Range Expert Paul Pastelok, "We expect additional rain from the summer monsoon to kick in early over much of the central and southern High Plains and should go a long way to further dent the drought."

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