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    Tropics Could Ease Heat, Drought in Houston, Dallas

    By By Alex Sosnowski, expert senior meteorologist.
    August 10, 2013, 9:31:00 AM EDT

    Excessive heat and drought will continue over Texas and much of the South Central states this weekend. However, thunderstorms may come to the rescue in a few locations.

    Heat is no stranger to the region during the middle of August, but temperatures have been running 8 to 12 degrees above average in many locations.

    Typical highs in Dallas during mid-August are in the upper 90s. Most records during this month are on the 105- to 110-degree range. Around Houston, most records are between 100 and 105 degrees.


    For a large part of the region, there are little signs of relief through Sunday with cool air a great distance away to the north.

    However, a small part of the region will get temporary relief from the blazing sunshine and heat, by way of clouds and tropical thunderstorm downpours.


    Some tropical moisture is forecast to roll in from the Gulf of Mexico reaching coastal areas at the very least. The moisture can also work a couple of hundred miles inland.

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    Parts of southern Louisiana and coastal and South Texas can expect thunderstorms through Sunday. Cities most likely to be impacted by this moisture include New Orleans and Lake Charles in Louisiana and Houston, Corpus Christi and Brownsville in Texas.

    Farther north, storms that brought a summer's worth of rain in one week are likely to roll eastward, rather than dip southward very far. As a result, areas from Dallas to Oklahoma City and Shreveport are likely to have only very spotty thunderstorm activity through the weekend.

    Farther west, some moisture over the Four Corners states may try to drift into West Texas and western Oklahoma. However, these storms are likely to be widely separated as well.

    While temperatures will continue to average above normal through this weekend and beyond, a few places that get under the downpours can get temporary relief. However, some of these areas can also be hit with flash flooding and travel delays.

    After a storm departs a location, the air will be more humid compared to when the storm moved through.

    The downpours can bring some localized relief from drought conditions. However, they may also lead to disruptions to travel and outdoor plans.


    A few spots within 100 miles of the coast can pick up a couple of inches of rain from the pattern.

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