Heavy Rain and Flash Flooding Possible in Portions of the Southeast, Mid-Atlantic and Appalachians. A Few Severe Thunderstorms Possible in the West and Northwest

Rain and thunderstorms are expected over much of the Southeast, Mid-Atlantic, and central Appalachians. Locally heavy rain is possible, with flash flooding possible over some areas. A few severe thunderstorms will be possible over portions of the western and northwestern U.S. today and Friday.
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Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.79°NLon: 73.1°WElev: 98ft.

Light Drizzle

49°F

9°C

Humidity 83%
Wind Speed NE 18 G 26 mph
Barometer 29.64 in (1003.9 mb)
Dewpoint 44°F (7°C)
Visibility 3.00 mi
Wind Chill43°F (6°C)
Last update 5 May 7:56 pm EDT
Extended Forecast for

East Islip NY

Coastal Flood Advisory until May 5, 10:00pm
Click here for hazard details and duration
...
  •  
    Coastal Flood Advisory until May 5, 10:00pm

    NOW until
    10:00pm Thu

    Coastal Flood Advisory

  • Tonight

    Tonight: Patchy drizzle before 2am, then patchy drizzle with a chance of rain between 2am and 4am, then rain likely with patchy drizzle after 4am.  Cloudy, with a low around 45. Northeast wind 10 to 13 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Patchy
    Drizzle then
    Rain Likely

    Low: 45 °F

  • Friday

    Friday: Rain and possibly a thunderstorm.  High near 54. Breezy, with an east wind 16 to 20 mph, with gusts as high as 32 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Rain and
    Breezy

    High: 54 °F

  • Friday
    Night

    Friday Night: Rain likely and possibly a thunderstorm before midnight, then a chance of rain.  Cloudy, with a low around 48. East wind 9 to 14 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Rain Likely

    Low: 48 °F

  • Saturday

    Saturday: A chance of showers.  Partly sunny, with a high near 60. East wind around 7 mph becoming south in the afternoon.  Chance of precipitation is 30%.

    Chance
    Showers

    High: 60 °F

  • Saturday
    Night

    Saturday Night: A slight chance of showers.  Mostly cloudy, with a low around 50. South wind 7 to 10 mph.  Chance of precipitation is 20%.

    Slight Chance
    Showers

    Low: 50 °F

  • Sunday

    Sunday: A chance of showers, mainly before 3pm.  Cloudy, then gradual clearing during the afternoon, with a high near 60. Chance of precipitation is 40%.

    Chance
    Showers

    High: 60 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 49.

    Mostly Clear

    Low: 49 °F

  • Monday

    Monday: Mostly sunny, with a high near 63.

    Mostly Sunny

    High: 63 °F

Detailed Forecast

Tonight
Patchy drizzle before 2am, then patchy drizzle with a chance of rain between 2am and 4am, then rain likely with patchy drizzle after 4am. Cloudy, with a low around 45. Northeast wind 10 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain and possibly a thunderstorm. High near 54. Breezy, with an east wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Cloudy, with a low around 48. East wind 9 to 14 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers. Partly sunny, with a high near 60. East wind around 7 mph becoming south in the afternoon. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 50. South wind 7 to 10 mph. Chance of precipitation is 20%.
Sunday
A chance of showers, mainly before 3pm. Cloudy, then gradual clearing during the afternoon, with a high near 60. Chance of precipitation is 40%.
Sunday Night
Mostly clear, with a low around 49.
Monday
Mostly sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Partly sunny, with a high near 63.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Cloudy, with a low around 52. Chance of precipitation is 30%.
Thursday
Cloudy, with a high near 59.
Click Map For Forecast
Point Forecast:
East Islip NY
 40.73°N 73.19°W (Elev. 16 ft)
7:43 pm EDT May 5, 2016
8pm EDT May 5, 2016-6pm EDT May 12, 2016
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database