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Severe weather and flash flooding possible Wednesday across portions of the Mississippi and Tennessee Valleys

Strong to severe storms are expected to develop across portions of the Mid-Mississippi Valley on Wednesday. A Slight Risk has been highlighted to indicate the area most likely to see supercell activity. Heavy rainfall from the Mid-Mississippi Valley into the Tennessee Valley could lead to flash flooding. Some areas could see as much as 3 inches of rainfall.
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Current conditions at

Johnstown, Johnstown-Cambria County Airport (KJST)

Lat: 40.32°NLon: 78.83°WElev: 2283ft.

Mostly Cloudy

59°F

15°C

Humidity 87%
Wind Speed SW 8 mph
Barometer 29.89 in (1011.0 mb)
Dewpoint 55°F (13°C)
Visibility 9.00 mi
Last update 30 Jun 11:54 pm EDT
Extended Forecast for

Shanksville PA

  • Overnight

    Chance Thunderstorms Chance for Measurable Precipitation 50%

    Chance
    Thunderstorms

    Low: 60 °F

  • Wednesday

    Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

    Slight Chc
    Thunderstorms

    High: 74 °F

  • Wednesday
    Night

    Increasing Clouds

    Increasing
    Clouds

    Low: 59 °F

  • Thursday

    Chance Showers Chance for Measurable Precipitation 40%

    Chance
    Showers

    High: 74 °F

  • Thursday
    Night

    Chance Showers Chance for Measurable Precipitation 30%

    Chance
    Showers

    Low: 58 °F

  • Friday

    Slight Chance Showers Chance for Measurable Precipitation 20%

    Slight Chc
    Showers

    High: 72 °F

  • Friday
    Night

    Chance Showers Chance for Measurable Precipitation 40%

    Chance
    Showers

    Low: 60 °F

  • Independence
    Day

    Chance Thunderstorms Chance for Measurable Precipitation 50%

    Chance
    Thunderstorms

    High: 72 °F

  • Saturday
    Night

    Chance Showers Chance for Measurable Precipitation 30%

    Chance
    Showers

    Low: 62 °F

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 60. West wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 74. West wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday Night
Increasing clouds, with a low around 59. West wind 5 to 8 mph.
Thursday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 74. West wind 3 to 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 58. North wind around 6 mph becoming east after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A slight chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 20%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Independence Day
A chance of showers and thunderstorms. Mostly cloudy, with a high near 72. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 63.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 76. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 64.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. Chance of precipitation is 30%.
  Click Map For Forecast
Point Forecast:
Shanksville PA
 40.01°N 78.92°W (Elev. 2395 ft)
10:37 pm EDT Jun 30, 2015
1am EDT Jul 1, 2015-6pm EDT Jul 7, 2015
 
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