Critical Fire Weather in the High Plains; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central and southern High Plains Wednesday. Two Pacific storms will continue impacting the mountains of the western U.S. into Thursday with gusty winds and heavy snow. Heavy snow and gusty winds will continue to impact the northern Plains into the central Great Lakes Wednesday. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 18, 12:00 AM PST until February 18, 09:00 AM PST

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mostly Cloudy

46°F

8°C

Humidity	87%
Wind Speed	SW 14 MPH
Barometer	29.66 in (1004.4 mb)
Dewpoint	43°F (6°C)
Visibility	10.00 mi
Wind Chill	40°F (4°C)
Last update	17 Feb 05:35 PM PST

More Information:

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

Extended Forecast for

7 Miles S Lake Berryessa CA

Cold Weather Advisory February 18, 12:00am until February 18, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

This Afternoon
High: 43 °F
Chance Rain
Tonight
Low: 33 °F
Chance Rain
then Slight
Chance
Rain/Snow
Wednesday
High: 49 °F
Chance
Rain/Snow
then Chance
Rain
Wednesday Night
Low: 37 °F
Rain
Thursday
High: 47 °F
Rain then
Chance Rain
Thursday Night
Low: 31 °F
Slight Chance
Rain then
Frost
Friday
High: 49 °F
Slight Chance
Rain
Friday Night
Low: 36 °F
Chance Rain
Saturday
High: 50 °F
Chance Rain

Detailed Forecast

This Afternoon

A 40 percent chance of rain. Mostly cloudy, with a steady temperature around 43. West southwest wind around 10 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

Tonight

A chance of rain, possibly mixing with snow after 4am, then gradually ending. Widespread frost before 4am, then areas of frost after 5am. Otherwise, partly cloudy, with a low around 33. West northwest wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Wednesday

A slight chance of rain and snow before 11am, then a chance of rain between 11am and 5pm. Partly sunny, with a high near 49. Calm wind becoming west southwest 5 to 8 mph in the morning. Chance of precipitation is 30%. Little or no snow accumulation expected.

Wednesday Night

Rain, mainly after 9pm. Low around 37. South southeast wind 7 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain, mainly before 10am. High near 47. West southwest wind 7 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

A 20 percent chance of rain before 10pm. Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 31.

Friday

A slight chance of rain between 10am and 4pm. Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 49. Chance of precipitation is 20%.

Friday Night

A chance of rain, mainly between 10pm and 4am. Mostly cloudy, with a low around 36.

Saturday

A chance of rain, mainly after 10am. Partly sunny, with a high near 50.

Saturday Night

Rain likely, mainly after 10pm. Mostly cloudy, with a low around 44.

Sunday

Rain. Cloudy, with a high near 54.

Sunday Night

Rain. Cloudy, with a low around 50.

Monday

Rain. Cloudy, with a high near 57.