Heavy Lake Effect Snow and Bitterly Cold Temperatures

A bitterly cold airmass will settle over much of the central and eastern U.S over the next several days. Well below normal temperatures and cold wind chills will be common. In addition, heavy lake effect snow will be possible especially over western New York where up to two feet is forecast by late Thursday.
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Hazardous Weather Conditions

Current conditions at

Islip, Long Island Mac Arthur Airport (KISP)

Lat: 40.95°NLon: -73.05°WElev: 98ft.

A Few Clouds and Breezy

24°F

-4°C

Humidity 38%
Wind Speed NW 22 G 30 mph
Barometer 29.82 in (1010.0 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 11 Feb 7:56 am EST
Extended Forecast for

Port Jefferson NY

  • Today

    Today: Snow showers likely.  Partly sunny, with a high near 28. Wind chill values between 10 and 15. Windy, with a west wind 21 to 26 mph, with gusts as high as 36 mph.  Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    Snow Showers
    Likely and
    Windy

    High: 28 °F

  • Tonight

    Tonight: A chance of snow showers, mainly before 8pm.  Mostly clear, with a low around 14. Wind chill values between zero and 10. Breezy, with a northwest wind 16 to 24 mph.  Chance of precipitation is 30%.

    Chance Snow
    Showers and
    Breezy

    Low: 14 °F

  • Friday

    Friday: Increasing clouds, with a high near 26. Wind chill values between zero and 10. West wind 9 to 11 mph.

    Increasing
    Clouds

    High: 26 °F

  • Friday
    Night

    Friday Night: A slight chance of snow before 7pm, then a slight chance of snow showers between 7pm and 1am, then a chance of snow after 1am.  Cloudy, with a low around 15. Wind chill values between 5 and 10. Southwest wind 6 to 13 mph.  Chance of precipitation is 40%.

    Chance Snow

    Low: 15 °F

  • Saturday

    Saturday: A slight chance of snow showers before 10am.  Partly sunny and cold, with a high near 19. Windy, with a northwest wind 20 to 29 mph, with gusts as high as 41 mph.  Chance of precipitation is 20%.

    Slight Chance
    Snow Showers
    and Windy

    High: 19 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around -4. Windy.

    Mostly Cloudy
    and Windy

    Low: -4 °F

  • Sunday

    Sunday: Mostly sunny and cold, with a high near 15. Blustery.

    Cold and
    Blustery

    High: 15 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 6.

    Mostly Clear

    Low: 6 °F

  • Washington's
    Birthday

    Washington's Birthday: A chance of snow after 4pm.  Partly sunny, with a high near 33. Chance of precipitation is 30%.

    Partly Sunny
    then Chance
    Snow

    High: 33 °F

Detailed Forecast

Today
Snow showers likely. Partly sunny, with a high near 28. Wind chill values between 10 and 15. Windy, with a west wind 21 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A chance of snow showers, mainly before 8pm. Mostly clear, with a low around 14. Wind chill values between zero and 10. Breezy, with a northwest wind 16 to 24 mph. Chance of precipitation is 30%.
Friday
Increasing clouds, with a high near 26. Wind chill values between zero and 10. West wind 9 to 11 mph.
Friday Night
A slight chance of snow before 7pm, then a slight chance of snow showers between 7pm and 1am, then a chance of snow after 1am. Cloudy, with a low around 15. Wind chill values between 5 and 10. Southwest wind 6 to 13 mph. Chance of precipitation is 40%.
Saturday
A slight chance of snow showers before 10am. Partly sunny and cold, with a high near 19. Windy, with a northwest wind 20 to 29 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around -4. Windy.
Sunday
Mostly sunny and cold, with a high near 15. Blustery.
Sunday Night
Mostly clear, with a low around 6.
Washington's Birthday
A chance of snow after 4pm. Partly sunny, with a high near 33. Chance of precipitation is 30%.
Monday Night
A chance of snow before 1am, then rain and snow likely. Cloudy, with a low around 28. Chance of precipitation is 70%.
Tuesday
Rain and snow likely. Cloudy, with a high near 48. Chance of precipitation is 70%.
Tuesday Night
Rain and snow likely. Cloudy, with a low around 32. Chance of precipitation is 60%.
Wednesday
A chance of rain and snow showers. Cloudy, with a high near 43. Chance of precipitation is 40%.
Click Map For Forecast
Point Forecast:
Port Jefferson NY
 40.95°N 73.05°W (Elev. 151 ft)
7:43 am EST Feb 11, 2016
8am EST Feb 11, 2016-6pm EST Feb 17, 2016
 
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Additional Resources

Radar & Satellite Image

Northeast Radar Mosaic Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database