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

Cold Weather Advisory in effect from December 29, 01:00 AM PST until December 29, 09:00 AM PST
Coastal Flood Advisory in effect from December 31, 05:00 AM PST until January 4, 02:00 PM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

37°F

3°C

Humidity	95%
Wind Speed	N 0 MPH
Barometer	30.3 in (1026.08 mb)
Dewpoint	36°F (2°C)
Visibility	10.00 mi
Last update	29 Dec 06:54 AM 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 until December 29, 09:00am

Click here for hazard details and duration

Coastal Flood Advisory

...

Cold Weather Advisory until December 29, 09:00am
NOW until 9:00am Mon
Cold Weather Advisory
Today
High: 59 °F
Sunny
Tonight
Low: 37 °F
Mostly Clear
Tuesday
High: 54 °F
Patchy Fog
then Mostly
Sunny
Tuesday Night
Low: 43 °F
Mostly Cloudy
Wednesday
High: 50 °F
Chance Rain
then Rain
Likely
Wednesday Night
Low: 45 °F
Rain and
Patchy Fog
New Year's Day
High: 53 °F
Rain and
Areas Fog
Thursday Night
Low: 46 °F
Rain and
Patchy Fog

Detailed Forecast

Today

Sunny, with a high near 59. North wind around 5 mph becoming calm in the afternoon.

Tonight

Mostly clear, with a low around 37. Northeast wind 3 to 6 mph.

Tuesday

Patchy fog before 10am. Otherwise, mostly sunny, with a high near 54. Light northeast wind becoming east 5 to 9 mph in the morning.

Tuesday Night

Mostly cloudy, with a low around 43. Northeast wind 3 to 5 mph.

Wednesday

Rain likely, mainly after 4pm. Mostly cloudy, with a high near 50. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain. Patchy fog after 10pm. Low around 45. Chance of precipitation is 80%. 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 80%.

Thursday Night

Rain. Patchy fog. Otherwise, cloudy, with a low around 46.

Friday

Rain likely. Patchy fog before 10am. Otherwise, cloudy, with a high near 54.

Friday Night

Rain likely. Patchy fog after 1am. Otherwise, cloudy, with a low around 47.

Saturday

Rain likely. Patchy fog. Otherwise, mostly cloudy, with a high near 53.