Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Coastal Flood Advisory until June 18, 05:00 AM PDT

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

57°F

14°C

Humidity	93%
Wind Speed	W 10 MPH
Barometer	29.89 in (1012.19 mb)
Dewpoint	55°F (13°C)
Visibility	10.00 mi
Last update	17 Jun 05:00 AM PDT

More Information:

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

Extended Forecast for

3 Miles NNW Napa CA

Coastal Flood Advisory June 17, 05:28am until June 18, 05:00am

Click here for hazard details and duration

Coastal Flood Advisory

Coastal Flood Advisory June 17, 05:28am until June 18, 05:00am
NOW until 5:00am Thu
Coastal Flood Advisory
Today
High: 79 °F
Patchy Fog
then Sunny
Tonight
Low: 54 °F
Mostly Clear
then Patchy
Fog
Thursday
High: 75 °F
Patchy Fog
then Sunny
Thursday Night
Low: 54 °F
Increasing
Clouds
Juneteenth
High: 72 °F
Mostly Sunny
Friday Night
Low: 53 °F
Mostly Clear
then Patchy
Fog
Saturday
High: 78 °F
Sunny
Saturday Night
Low: 51 °F
Clear then
Fog

Detailed Forecast

Today

Patchy fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming south southwest 5 to 9 mph in the afternoon.

Tonight

Patchy fog after 3am. Otherwise, increasing clouds, with a low around 54. Southwest wind 5 to 9 mph becoming calm after midnight.

Thursday

Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 75. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

Thursday Night

Increasing clouds, with a low around 54. West southwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph.

Juneteenth

Mostly sunny, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the afternoon.

Friday Night

Patchy fog after 2am. Otherwise, partly cloudy, with a low around 53.

Saturday

Sunny, with a high near 78.

Saturday Night

Widespread fog, mainly after 2am. Otherwise, mostly clear, with a low around 51.

Sunday

Areas of fog before 9am. Otherwise, mostly sunny, with a high near 81.