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Severe storms possible in Plains, Mid-Mississippi Valley

Severe thunderstorms will be possible Wednesday afternoon and evening across portions of the Central Plains and Mid-Mississippi River Valley. Large hail and damaging wind will be the main threats.
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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

A Few Clouds

71°F

22°C

Humidity 57%
Wind Speed N 6 mph
Barometer 29.89 in (1011.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 4 Aug 11:56 pm EDT
Extended Forecast for

Sayville NY

  • Overnight

    Overnight: Mostly clear, with a low around 67. Light west wind.

    Mostly Clear

    Low: 67 °F

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 1pm.  Sunny, with a high near 87. North wind 6 to 11 mph becoming west in the afternoon.  Chance of precipitation is 20%.

    Sunny then
    Slight Chance
    T-storms

    High: 87 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 63. Northwest wind around 8 mph.

    Mostly Clear

    Low: 63 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 81. Northwest wind 6 to 9 mph.

    Mostly Sunny

    High: 81 °F

  • Thursday
    Night

    Thursday Night: A chance of showers, mainly after midnight.  Mostly cloudy, with a low around 64. Northwest wind around 5 mph becoming light and variable.  Chance of precipitation is 40%.

    Chance
    Showers

    Low: 64 °F

  • Friday

    Friday: Showers likely.  Mostly cloudy, with a high near 74. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Showers
    Likely

    High: 74 °F

  • Friday
    Night

    Friday Night: Showers likely.  Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 63 °F

  • Saturday

    Saturday: A chance of showers before noon.  Mostly cloudy, with a high near 78. Chance of precipitation is 40%.

    Chance
    Showers then
    Partly Sunny

    High: 78 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 65.

    Partly Cloudy

    Low: 65 °F

Detailed Forecast

Overnight
Mostly clear, with a low around 67. Light west wind.
Wednesday
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. North wind 6 to 11 mph becoming west in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 63. Northwest wind around 8 mph.
Thursday
Mostly sunny, with a high near 81. Northwest wind 6 to 9 mph.
Thursday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 64. Northwest wind around 5 mph becoming light and variable. Chance of precipitation is 40%.
Friday
Showers likely. Mostly cloudy, with a high near 74. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Saturday
A chance of showers before noon. Mostly cloudy, with a high near 78. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 66.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 78. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 79.
  Click Map For Forecast
Point Forecast:
Sayville NY
 40.74°N 73.1°W (Elev. 30 ft)
11:21 pm EDT Aug 4, 2015
12am EDT Aug 5, 2015-6pm EDT Aug 10, 2015
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database