Atmospheric River to Begin to Impact the Northwest U.S.; Gusty Winds in the Northeast U.S.

A strong atmospheric river moving into northern California later Tuesday will bring a threat for moderate to heavy rainfall and flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. through at least Wednesday. Gusty winds and isolated rain and snow showers will continue in the Northeast U.S. Tuesday behind a cold front. Read More >

Hazardous Weather Conditions

Wind Advisory in effect from November 4, 10:00 PM PST until November 5, 04:00 PM PST
Coastal Flood Advisory in effect from November 4, 08:00 AM PST until November 8, 02:00 PM PST

Current conditions at

KF6YUA Sebastopol (AR323)

Lat: 38.3803°NLon: 122.8242°WElev: 230.0ft.

56°F

13°C

Humidity	96%
Wind Speed	SSE 0 MPH
Barometer	30.12 in (1019.98 mb)
Dewpoint	55°F (13°C)
Visibility	NA
Last update	04 Nov 01:37 AM PST

More Information:

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

Extended Forecast for

8 Miles SSW Saint Helena CA

Coastal Flood Advisory November 4, 08:00am until November 8, 02:00pm

Wind Advisory November 4, 10:00pm until November 5, 04:00pm

Click here for hazard details and duration

Coastal Flood Advisory

Wind Advisory

Overnight
Low: 51 °F
Areas Fog
Tuesday
High: 66 °F
Mostly Cloudy
Tuesday Night
Low: 54 °F
Showers
Wednesday
High: 62 °F
Showers
Wednesday Night
Low: 52 °F
Showers
Likely and
Patchy Fog
Thursday
High: 65 °F
Areas Fog
then Mostly
Sunny
Thursday Night
Low: 51 °F
Patchy Fog
then Slight
Chance
Showers and
Patchy Fog
Friday
High: 67 °F
Slight Chance
Showers then
Partly Sunny
Friday Night
Low: 50 °F
Mostly Cloudy

Detailed Forecast

Overnight

Areas of fog. Otherwise, cloudy, with a low around 51. Calm wind.

Tuesday

Mostly cloudy, with a high near 66. Calm wind becoming south 5 to 7 mph in the morning.

Tuesday Night

Showers after 10pm. Low around 54. South southeast wind 9 to 13 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

Wednesday

Showers and possibly a thunderstorm. High near 62. South southwest wind 9 to 16 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday Night

Showers likely, mainly before 10pm. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 52. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday

Areas of fog before 10am. Otherwise, mostly sunny, with a high near 65.

Thursday Night

A 10 percent chance of showers after 4am. Patchy fog before 10pm, then patchy fog after midnight. Otherwise, mostly cloudy, with a low around 51.

Friday

A slight chance of showers before 10am. Partly sunny, with a high near 67.

Friday Night

Mostly cloudy, with a low around 50.

Saturday

Mostly sunny, with a high near 71.

Saturday Night

Mostly cloudy, with a low around 50.