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    Philly: Downpour, Flooding Risk to Increase

    By , AccuWeather.com Senior Meteorologist
    August 20, 2014; 4:02 AM ET
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    After a period of dry air, drenching showers and thunderstorms will survive the trip into Philadelphia from the Midwest.

    At this time, it appears the greatest risk of downpours heavy enough to cause flash and urban flooding will be Thursday into early Friday. However, people driving or flying to and from the south and west may encounter some delays prior to this.

    There is a risk of a downpour or two Thursday evening for the NFL preseason game between the Eagles and Steelers at Lincoln Financial Field.

    Temperatures are forecast to remain near or slightly below average through the weekend. Temperatures typically range from a low of 67 to a high of 85 F.

    Detailed Philadelphia Forecast
    Philadelphia Interactive Weather Radar
    AccuWeather.com MinuteCast™ for Philadelphia

    During next week, there are signs of some hot weather for a few days, especially during the second half of the week. Temperatures may top 90 degrees.

    AccuWeather will also be watching for an uptick in tropical activity during the last part of August. September is typically the most active month in terms of tropical storms and hurricanes in the Atlantic Basin.

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