Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Dense Fog Advisory until December 26, 10:00 AM PST

Current conditions at

Walla Walla Regional Airport (KALW)

Lat: 46.09462°NLon: 118.2858°WElev: 1168.0ft.

Clear

36°F

2°C

Humidity	93%
Wind Speed	NNE 4 MPH
Barometer	29.64 in (1003.73 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Wind Chill	33°F (1°C)
Last update	25 Dec 11:55 PM PST

More Information:

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

Extended Forecast for

2 Miles ENE Waitsburg WA

Dense Fog Advisory December 26, 12:19am until December 26, 10:00am

Click here for hazard details and duration

Dense Fog Advisory

Dense Fog Advisory December 26, 12:19am until December 26, 10:00am
NOW until 10:00am Fri
Dense Fog Advisory
Overnight
Low: 36 °F
Rain
Friday
High: 45 °F
Rain/Snow
then Rain and
Breezy
Friday Night
Low: 30 °F
Breezy.
Rain/Snow
then Snow
Likely
Saturday
High: 36 °F
Chance Snow
then Slight
Chance Snow
Saturday Night
Low: 22 °F
Mostly Cloudy
Sunday
High: 36 °F
Partly Sunny
Sunday Night
Low: 23 °F
Partly Cloudy
Monday
High: 36 °F
Partly Sunny

Detailed Forecast

Overnight

Rain, mainly after 1am. Low around 36. Southeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Rain, possibly mixed with snow, becoming all rain after 10am. High near 45. Breezy, with a southwest wind 14 to 23 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Friday Night

Rain, possibly mixed with snow, becoming all snow after 10pm. Low around 30. Breezy, with a southwest wind 26 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Saturday

A 50 percent chance of snow, mainly before 10am. Partly sunny, with a high near 36. West wind 10 to 16 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 22. South wind 3 to 6 mph.

Sunday

Partly sunny, with a high near 36.

Sunday Night

Partly cloudy, with a low around 23.

Monday

Partly sunny, with a high near 36.

Monday Night

Mostly cloudy, with a low around 25.

Tuesday

Mostly cloudy, with a high near 38.