Heavy rain and isolated severe storms in portions of the West

A storm system will bring rain and thunderstorms to much of the Intermountain West and northern High Plains on Friday. Isolated severe thunderstorms with large hail and damaging winds are possible from northeast California to Wyoming. Heavy rain could lead to flash flooding, especially in the mountains of Wyoming.
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Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

62°F

17°C

Humidity 70%
Wind Speed NW 7 MPH
Barometer 29.85 in (1010.1 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 05 May 6:54 pm PDT
Extended Forecast for

6 Miles SE Lake Berryessa CA

  • 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 53. Southwest wind 7 to 11 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers

    Low: 53 °F

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Some of the storms could produce small hail.  Cloudy, with a high near 64. Southwest wind 6 to 9 mph becoming south southeast in the afternoon.  New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers

    High: 64 °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 54. Calm wind becoming west around 5 mph after midnight.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers

    Low: 54 °F

  • Saturday

    Saturday: A 40 percent chance of showers.  Mostly cloudy, with a high near 66. West southwest wind 3 to 8 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    Chance
    Showers

    High: 66 °F

  • Saturday
    Night

    Saturday Night: A 20 percent chance of showers.  Cloudy, with a low around 55. Southwest wind 6 to 10 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Slight Chance
    Showers

    Low: 55 °F

  • Sunday

    Sunday: A 20 percent chance of showers before 11am.  Partly sunny, with a high near 71.

    Slight Chance
    Showers then
    Partly Sunny

    High: 71 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 54.

    Partly Cloudy

    Low: 54 °F

  • Monday

    Monday: Mostly sunny, with a high near 75.

    Mostly Sunny

    High: 75 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 54.

    Mostly Clear

    Low: 54 °F

Detailed Forecast

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 53. Southwest wind 7 to 11 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 64. Southwest wind 6 to 9 mph becoming south southeast in the afternoon. 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 54. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 66. West southwest wind 3 to 8 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A 20 percent chance of showers. Cloudy, with a low around 55. Southwest wind 6 to 10 mph. 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 71.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 82.
Click Map For Forecast
Point Forecast:
6 Miles SE Lake Berryessa CA
 38.51°N 122.2°W (Elev. 541 ft)
2:32 pm PDT May 5, 2016
7pm PDT May 5, 2016-6pm PDT May 12, 2016
 
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Additional Resources

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