Powerful Pacific System Impacting the West; First Significant Snow for Portions of the East

Power Pacific system will continue to bring significant impacts for Pacific Northwest into northern California the remainder of the week. Dangerous coastal affects, heavy rain, flooding, strong winds, and higher elevation mountain snow continues. Meanwhile, a storm across the east is set to bring the first accumulating snow to many higher elevations of the Catskills into the central Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

light rain,mist

55°F

13°C

Humidity	93%
Wind Speed	S 10 MPH
Barometer	30.03 in (1016.93 mb)
Dewpoint	54°F (12°C)
Visibility	5.00 mi
Last update	21 Nov 04:05 AM PST

More Information:

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

Extended Forecast for

4 Miles SE Saint Helena CA

Flood Watch November 21, 04:16am until November 23, 04:00am

Flood Advisory until November 23, 03:15am

Wind Advisory November 21, 04:16am until November 21, 06:00am

Click here for hazard details and duration

Flood Watch

Flood Advisory

Wind Advisory

Flood Watch November 21, 04:16am until November 23, 04:00am
Flood Advisory until November 23, 03:15am
Wind Advisory November 21, 04:16am until November 21, 06:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 52 °F
Heavy Rain
Thursday
High: 61 °F
Heavy Rain
Thursday Night
Low: 53 °F
Rain
Friday
High: 60 °F
Heavy Rain
Friday Night
Low: 44 °F
Showers
Saturday
High: 60 °F
Chance
Showers
Saturday Night
Low: 40 °F
Chance
Showers and
Patchy Fog
Sunday
High: 56 °F
Rain Likely
and Areas Fog

Detailed Forecast

Overnight

Rain. The rain could be heavy at times. Steady temperature around 52. South southeast wind 13 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain. The rain could be heavy at times. High near 61. South southeast wind 11 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

Thursday Night

Rain. Low around 53. South wind 10 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.

Friday

Showers. The rain could be heavy at times. High near 60. South wind 8 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

Friday Night

Showers. Low around 44. Southwest wind 3 to 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

A 50 percent chance of showers. Partly sunny, with a high near 60. New precipitation amounts of less than a tenth of an inch possible.

Saturday Night

A 40 percent chance of showers. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 40.

Sunday

Rain likely. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 56.

Sunday Night

Rain likely. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 43.

Monday

Rain likely. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 58.

Monday Night

Rain. Patchy fog. Otherwise, mostly cloudy, with a low around 43.