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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

Baltimore, Baltimore-Washington International Airport (KBWI)

Lat: 39.17°NLon: 76.68°WElev: 135ft.

Thunderstorm Rain Fog/Mist

68°F

20°C

Humidity 93%
Wind Speed SW 9 G 18 mph
Barometer 29.85 in (1010.6 mb)
Dewpoint 66°F (19°C)
Visibility 3.00 mi
Last update 1 Jul 1:54 am EDT
Extended Forecast for

Severn MD

  • Overnight

    Thunderstorms Likely Chance for Measurable Precipitation 70%

    Thunderstorms
    Likely

    Low: 69 °F

  • Wednesday

    Scattered Thunderstorms Chance for Measurable Precipitation 30%

    Scattered
    Thunderstorms

    High: 87 °F

  • Wednesday
    Night

    Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

    Slight Chc
    Thunderstorms

    Low: 68 °F

  • Thursday

    Chance Showers Chance for Measurable Precipitation 30%

    Chance
    Showers

    High: 83 °F

  • Thursday
    Night

    Showers Likely Chance for Measurable Precipitation 60%

    Showers
    Likely

    Low: 67 °F

  • Friday

    Chance Showers Chance for Measurable Precipitation 40%

    Chance
    Showers

    High: 79 °F

  • Friday
    Night

    Chance Showers Chance for Measurable Precipitation 40%

    Chance
    Showers

    Low: 65 °F

  • Independence
    Day

    Chance Thunderstorms Chance for Measurable Precipitation 50%

    Chance
    Thunderstorms

    High: 81 °F

  • Saturday
    Night

    Mostly Cloudy

    Mostly
    Cloudy

    Low: 66 °F

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly before 4am. Mostly cloudy, with a low around 69. Light southwest wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Isolated showers and thunderstorms before 9am, then scattered showers and thunderstorms after noon. Mostly sunny, with a high near 87. West wind 6 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 68. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
A chance of showers after noon. Partly sunny, with a high near 83. North wind around 5 mph becoming light and variable. Chance of precipitation is 30%.
Thursday Night
Showers likely, mainly after midnight. Cloudy, with a low around 67. Northeast wind 5 to 7 mph. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Independence Day
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Mostly cloudy, with a low around 67.
Monday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 70.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.
  Click Map For Forecast
Point Forecast:
Severn MD
 39.14°N 76.69°W (Elev. 148 ft)
2:02 am EDT Jul 1, 2015
3am EDT Jul 1, 2015-6pm EDT Jul 7, 2015
 
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