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 downwind of Lakes Erie and Ontario, where up to one foot of additional snow is forecast by Sunday morning.
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Hazardous Weather Conditions

Current conditions at

Pittsburgh, Allegheny County Airport (KAGC)

Lat: 40.31°NLon: -80.09°WElev: 1253ft.

Fair

14°F

-10°C

Humidity 51%
Wind Speed W 7 mph
Barometer 30.24 in (1026.8 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 11 Feb 9:53 pm EST
Extended Forecast for

Upper St. Clair PA

  • Tonight

    Tonight: Partly cloudy, with a low around 7. Wind chill values as low as -2. Southwest wind around 5 mph.

    Partly Cloudy

    Low: 7 °F

  • Friday

    Friday: A chance of light snow, mainly after noon.  Cloudy, with a high near 24. Wind chill values as low as -3. South wind 5 to 9 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Slight Chance
    Light Snow
    then Chance
    Light Snow

    High: 24 °F

  • Friday
    Night

    Friday Night: Snow showers likely, mainly before 3am.  Cloudy, with a low around 6. Wind chill values as low as -10. Northwest wind 10 to 14 mph.  Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Snow Showers
    Likely

    Low: 6 °F

  • Saturday

    Saturday: A chance of snow showers, mainly before 4pm.  Mostly cloudy and cold, with a high near 11. Wind chill values as low as -12. Northwest wind 13 to 16 mph.  Chance of precipitation is 40%.

    Chance Snow
    Showers

    High: 11 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around -2. West wind 6 to 11 mph becoming light  after midnight.

    Mostly Cloudy

    Low: -2 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 19.

    Mostly Sunny

    High: 19 °F

  • Sunday
    Night

    Sunday Night: A chance of snow after 10pm.  Mostly cloudy, with a low around 13. Chance of precipitation is 40%.

    Chance Snow

    Low: 13 °F

  • Washington's
    Birthday

    Washington's Birthday: A chance of snow.  Cloudy, with a high near 34. Chance of precipitation is 50%.

    Chance Snow

    High: 34 °F

  • Monday
    Night

    Monday Night: Snow likely.  Cloudy, with a low around 26. Chance of precipitation is 60%.

    Snow Likely

    Low: 26 °F

Detailed Forecast

Tonight
Partly cloudy, with a low around 7. Wind chill values as low as -2. Southwest wind around 5 mph.
Friday
A chance of light snow, mainly after noon. Cloudy, with a high near 24. Wind chill values as low as -3. South wind 5 to 9 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
Snow showers likely, mainly before 3am. Cloudy, with a low around 6. Wind chill values as low as -10. Northwest wind 10 to 14 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday
A chance of snow showers, mainly before 4pm. Mostly cloudy and cold, with a high near 11. Wind chill values as low as -12. Northwest wind 13 to 16 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around -2. West wind 6 to 11 mph becoming light after midnight.
Sunday
Mostly sunny, with a high near 19.
Sunday Night
A chance of snow after 10pm. Mostly cloudy, with a low around 13. Chance of precipitation is 40%.
Washington's Birthday
A chance of snow. Cloudy, with a high near 34. Chance of precipitation is 50%.
Monday Night
Snow likely. Cloudy, with a low around 26. Chance of precipitation is 60%.
Tuesday
A chance of snow before 2pm, then a chance of rain between 2pm and 5pm, then a chance of rain and snow after 5pm. Cloudy, with a high near 36. Chance of precipitation is 40%.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Wednesday
A chance of rain and snow showers. Mostly cloudy, with a high near 36. Chance of precipitation is 40%.
Wednesday Night
A chance of snow showers. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 37.
Click Map For Forecast
Point Forecast:
Upper St. Clair PA
 40.31°N 80.09°W (Elev. 1099 ft)
9:27 pm EST Feb 11, 2016
10pm EST Feb 11, 2016-6pm EST Feb 18, 2016
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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