Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory until January 4, 02:00 PM PST

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Overcast

52°F

11°C

Humidity	87%
Wind Speed	ENE 9 MPH
Barometer	29.85 in (1010.84 mb)
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	01 Jan 04:20 AM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Napa Co. Airport CA

Coastal Flood Advisory January 1, 04:34am until January 4, 02:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory January 1, 04:34am until January 4, 02:00pm
NOW until 2:00pm Sun
Coastal Flood Advisory
Overnight
Low: 50 °F
Showers
New Year's Day
High: 55 °F
Showers
Thursday Night
Low: 49 °F
Showers then
Chance
Showers
Friday
High: 56 °F
Chance
Showers
Friday Night
Low: 52 °F
Showers
Saturday
High: 56 °F
Showers and
Breezy
Saturday Night
Low: 51 °F
Showers
Sunday
High: 54 °F
Showers

Detailed Forecast

Overnight

Showers. Steady temperature around 50. East wind around 17 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

New Year's Day

Showers. High near 55. East wind 9 to 13 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Thursday Night

Showers, mainly before 10pm. Low around 49. East southeast wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

Friday

A 50 percent chance of showers, mainly after 10am. Mostly cloudy, with a high near 56. Southeast wind 8 to 14 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Showers, with thunderstorms also possible after 4am. Low around 52. South southeast wind 16 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

Showers and possibly a thunderstorm. High near 56. Breezy. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 100%.

Sunday

Showers, with thunderstorms also possible after 10am. Cloudy, with a high near 54.

Sunday Night

Showers. Cloudy, with a low around 47.

Monday

Showers. Mostly cloudy, with a high near 52.

Monday Night

Showers likely. Mostly cloudy, with a low around 43.

Tuesday

A chance of showers. Partly sunny, with a high near 53.