National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Powerful Storm to Impact Eastern Third of U.S. this weekend.

A developing storm system will bring a myriad of significant impacts this weekend. Heavy snow up to 18 inches from the Ohio Valley to the Northeast, and ice up to a quarter of an inch is forecast in places. Heavy rain may cause flash flooding from the Mid-South to the Mid-Atlantic. Severe thunderstorms with damaging winds and isolated tornadoes will be possible in the Deep South. Read More >

Hazardous Weather Conditions

Current conditions at

Penn Yan, Penn Yan Airport (KPEO)

Lat: 42.64°NLon: 77.05°WElev: 902ft.

Overcast

17°F

-8°C

Humidity 84%
Wind Speed N 5 mph
Barometer 30.19 in (1024.0 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 19 Jan 5:53 am EST
Extended Forecast for

Hammondsport NY

Winter Storm Warning January 19, 12:00pm until January 20, 04:00pm
Click here for hazard details and duration
Winter Storm Warning

  • Today

    Today: Light snow likely, mainly between 9am and 1pm, then snow after 1pm. The snow could be heavy at times. High near 19. Northeast wind 6 to 8 mph. Chance of precipitation is 90%. Total daytime snow accumulation of around 4 inches.

    Light Snow
    Likely then
    Heavy Snow

    High: 19 °F

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Low around 13. Wind chill values as low as -1. North wind 7 to 13 mph. Chance of precipitation is 100%. New snow accumulation of around 11 inches.

    Heavy Snow

    Low: 13 °F

  • Sunday

    Sunday: Snow before noon, then a chance of snow showers between noon and 3pm, then snow likely after 3pm. Areas of blowing snow. High near 13. Wind chill values as low as -7. North wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.

    Snow and
    Areas Blowing
    Snow

    High: 13 °F

  • Sunday
    Night

    Sunday Night: Snow likely before 7pm, then snow showers likely after 7pm. Cloudy, with a low around -3. Wind chill values as low as -20. Northwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Snow Likely

    Low: -3 °F

  • M.L.King
    Day

    M.L.King Day: A chance of snow showers. Areas of blowing snow before 1pm. Mostly cloudy and cold, with a high near 7. Northwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Chance Snow
    Showers and
    Areas Blowing
    Snow

    High: 7 °F

  • Monday
    Night

    Monday Night: A chance of snow showers before 1am. Partly cloudy, with a low around -5. Chance of precipitation is 30%.

    Chance Snow
    Showers

    Low: -5 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 26.

    Partly Sunny

    High: 26 °F

  • Tuesday
    Night

    Tuesday Night: Snow likely, mainly after 1am. Cloudy, with a low around 19. Chance of precipitation is 60%.

    Snow Likely

    Low: 19 °F

  • Wednesday

    Wednesday: Snow and freezing rain likely before 1pm, then rain likely. Cloudy, with a high near 41. Chance of precipitation is 70%.

    Wintry Mix
    Likely

    High: 41 °F

Detailed Forecast

Today
Light snow likely, mainly between 9am and 1pm, then snow after 1pm. The snow could be heavy at times. High near 19. Northeast wind 6 to 8 mph. Chance of precipitation is 90%. Total daytime snow accumulation of around 4 inches.
Tonight
Snow. The snow could be heavy at times. Low around 13. Wind chill values as low as -1. North wind 7 to 13 mph. Chance of precipitation is 100%. New snow accumulation of around 11 inches.
Sunday
Snow before noon, then a chance of snow showers between noon and 3pm, then snow likely after 3pm. Areas of blowing snow. High near 13. Wind chill values as low as -7. North wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of around 2 inches.
Sunday Night
Snow likely before 7pm, then snow showers likely after 7pm. Cloudy, with a low around -3. Wind chill values as low as -20. Northwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
M.L.King Day
A chance of snow showers. Areas of blowing snow before 1pm. Mostly cloudy and cold, with a high near 7. Northwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
A chance of snow showers before 1am. Partly cloudy, with a low around -5. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 26.
Tuesday Night
Snow likely, mainly after 1am. Cloudy, with a low around 19. Chance of precipitation is 60%.
Wednesday
Snow and freezing rain likely before 1pm, then rain likely. Cloudy, with a high near 41. Chance of precipitation is 70%.
Wednesday Night
Snow showers likely. Cloudy, with a low around 24. Chance of precipitation is 60%.
Thursday
A chance of snow showers. Cloudy, with a high near 30. Chance of precipitation is 40%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 16. Chance of precipitation is 40%.
Friday
A chance of snow showers. Mostly cloudy, with a high near 29. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Hammondsport NY
 42.41°N 77.23°W (Elev. 801 ft)
Last Update:
3:32 am EST Jan 19, 2019
Forecast Valid:
6am EST Jan 19, 2019-6pm EST Jan 25, 2019
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation