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

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33ft.

Mostly Cloudy

65°F

18°C

Humidity 65%
Wind Speed W 9 MPH
Barometer 29.86 in (1010.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 05 May 4:54 pm PDT
Extended Forecast for

6 Miles SSW Lake Berryessa CA

  • This
    Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Some of the storms could produce small hail.  Partly sunny, with a high near 63. West southwest wind around 10 mph.

    Slight Chance
    T-storms

    High: 63 °F

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 11pm. Some of the storms could produce small hail.  Mostly cloudy, with a low around 51. South southwest wind 6 to 10 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers

    Low: 51 °F

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Some of the storms could produce small hail.  Cloudy, with a high near 61. South wind 7 to 11 mph.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers

    High: 61 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms. Some of the storms could produce small hail.  Mostly cloudy, with a low around 52. Light and variable wind.  Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers

    Low: 52 °F

  • Saturday

    Saturday: A 40 percent chance of showers.  Mostly cloudy, with a high near 64. West southwest wind 5 to 10 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    Chance
    Showers

    High: 64 °F

  • Saturday
    Night

    Saturday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 52. New precipitation amounts of less than a tenth of an inch possible.

    Slight Chance
    Showers

    Low: 52 °F

  • Sunday

    Sunday: A 20 percent chance of showers before 11am.  Partly sunny, with a high near 69.

    Slight Chance
    Showers then
    Partly Sunny

    High: 69 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 51.

    Partly Cloudy

    Low: 51 °F

  • Monday

    Monday: Mostly sunny, with a high near 72.

    Mostly Sunny

    High: 72 °F

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Some of the storms could produce small hail. Partly sunny, with a high near 63. West southwest wind around 10 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 11pm. Some of the storms could produce small hail. Mostly cloudy, with a low around 51. South southwest wind 6 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of showers and thunderstorms. Some of the storms could produce small hail. Cloudy, with a high near 61. South wind 7 to 11 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Some of the storms could produce small hail. Mostly cloudy, with a low around 52. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 64. West southwest wind 5 to 10 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 52. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 20 percent chance of showers before 11am. Partly sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 79.
Click Map For Forecast
Point Forecast:
6 Miles SSW Lake Berryessa CA
 38.5°N 122.28°W (Elev. 1355 ft)
2:32 pm PDT May 5, 2016
5pm PDT May 5, 2016-6pm PDT May 12, 2016
 
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Additional Resources

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