Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory in effect from December 31, 05:00 AM PST until January 4, 02:00 PM PST
Cold Weather Advisory in effect from December 30, 01:00 AM PST until December 30, 09:00 AM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

55°F

13°C

Humidity	62%
Wind Speed	E 10 MPH
Barometer	30.25 in (1024.38 mb)
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Last update	29 Dec 02:35 PM PST

More Information:

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

Extended Forecast for

Napa CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm

Cold Weather Advisory December 30, 01:00am until December 30, 09:00am

Click here for hazard details and duration

Coastal Flood Advisory

Cold Weather Advisory

This Afternoon
High: 59 °F
Sunny
Tonight
Low: 36 °F
Mostly Clear
then Patchy
Fog
Tuesday
High: 55 °F
Patchy Fog
then Partly
Sunny
Tuesday Night
Low: 43 °F
Cloudy then
Slight Chance
Rain
Wednesday
High: 51 °F
Chance Rain
Wednesday Night
Low: 47 °F
Rain and
Patchy Fog
New Year's Day
High: 53 °F
Rain and
Areas Fog
Thursday Night
Low: 49 °F
Rain and
Patchy Fog
Friday
High: 55 °F
Rain

Detailed Forecast

This Afternoon

Sunny, with a high near 59. Northeast wind around 5 mph.

Tonight

Patchy fog after 4am. Otherwise, mostly clear, with a low around 36. Calm wind becoming east northeast around 6 mph after midnight.

Tuesday

Patchy fog between 7am and 9am. Otherwise, increasing clouds, with a high near 55. Light north northeast wind becoming east 5 to 9 mph in the morning.

Tuesday Night

A 10 percent chance of rain after 4am. Cloudy, with a low around 43. Northeast wind 3 to 5 mph.

Wednesday

A 50 percent chance of rain, mainly after 10am. Cloudy, with a high near 51. Calm wind becoming east northeast around 5 mph in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Patchy fog after 10pm. Low around 47. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

New Year's Day

Rain. Areas of fog before 10am. High near 53. Chance of precipitation is 90%.

Thursday Night

Rain. Patchy fog. Otherwise, cloudy, with a low around 49.

Friday

Rain. Cloudy, with a high near 55.

Friday Night

Rain. Cloudy, with a low around 45.

Saturday

Rain likely. Mostly cloudy, with a high near 53.