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.

Rain

43°F

6°C

Humidity	81%
Wind Speed	SW 10 MPH
Barometer	29.73 in (1006.77 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Wind Chill	37°F (3°C)
Last update	17 Feb 09:00 PM PST

More Information:

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

Extended Forecast for

2 Miles N Sonoma CA

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

Click here for hazard details and duration

Cold Weather Advisory

Tonight
Low: 32 °F
Chance Rain
and Patchy
Fog
Wednesday
High: 50 °F
Chance Rain
and Areas Fog
Wednesday Night
Low: 36 °F
Rain
Thursday
High: 48 °F
Breezy. Rain
then Chance
Rain
Thursday Night
Low: 28 °F
Slight Chance
Rain then
Frost
Friday
High: 50 °F
Chance Rain
Friday Night
Low: 33 °F
Chance Rain
and Patchy
Fog
Saturday
High: 52 °F
Rain Likely
Saturday Night
Low: 43 °F
Rain

Detailed Forecast

Tonight

A chance of rain before 2am, then a slight chance of rain after 3am. Patchy fog after 5am. Patchy frost between 2am and 3am. Otherwise, mostly cloudy, with a low around 32. Northwest wind 8 to 13 mph becoming light north after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

A 30 percent chance of rain between noon and 4pm. Areas of fog before 11am. Otherwise, partly sunny, with a high near 50. Calm wind becoming west 5 to 8 mph in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

Rain, mainly after 9pm. Low around 36. Northwest wind 5 to 7 mph becoming south southeast in the evening. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Thursday

Rain, mainly before 10am. High near 48. Breezy, with a northwest wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 30 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 28. North northwest wind 7 to 15 mph, with gusts as high as 18 mph.

Friday

A 30 percent chance of rain, mainly between 10am and 4pm. Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 50.

Friday Night

A 30 percent chance of rain, mainly between 10pm and 4am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 33.

Saturday

Rain likely, mainly after 4pm. Mostly cloudy, with a high near 52.

Saturday Night

Rain. Mostly cloudy, with a low around 43.

Sunday

Rain. Cloudy, with a high near 55.

Sunday Night

Rain. Cloudy, with a low around 48.