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 >

Current conditions at

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Rain

39°F

4°C

Humidity	93%
Wind Speed	N 0 MPH
Barometer	29.67 in (1004.74 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	25 Dec 10:20 AM PST

More Information:

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

Extended Forecast for

3 Miles SSW Wallula WA

Christmas Day
High: 48 °F
Chance Rain
Tonight
Low: 42 °F
Chance Rain
then Rain
Likely
Friday
High: 49 °F
Rain Likely
Friday Night
Low: 37 °F
Windy. Chance
Rain then
Chance
Rain/Snow
Saturday
High: 41 °F
Slight Chance
Rain/Snow
then Mostly
Sunny
Saturday Night
Low: 29 °F
Mostly Cloudy
Sunday
High: 36 °F
Mostly Sunny
Sunday Night
Low: 26 °F
Mostly Cloudy
Monday
High: 34 °F
Patchy Fog
then Partly
Sunny

Detailed Forecast

Christmas Day

A 30 percent chance of rain, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 48. North wind around 6 mph.

Tonight

A chance of rain before 10pm, then rain likely after 1am. Mostly cloudy, with a steady temperature around 42. South wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday

Rain likely, mainly before 10am. Mostly cloudy, with a high near 49. Southwest wind 11 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

A chance of rain before 4am, then a slight chance of rain and snow. Snow level 2100 feet lowering to 1000 feet after midnight . Partly cloudy, with a low around 37. Windy, with a southwest wind 28 to 30 mph, with gusts as high as 37 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Saturday

A slight chance of rain and snow before 10am. Snow level 700 feet. Mostly sunny, with a high near 41. West wind 9 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Saturday Night

Mostly cloudy, with a low around 29.

Sunday

Mostly sunny, with a high near 36.

Sunday Night

Mostly cloudy, with a low around 26.

Monday

Patchy fog before 10am. Otherwise, partly sunny, with a high near 34.

Monday Night

Mostly cloudy, with a low around 28.

Tuesday

Patchy fog. Otherwise, mostly cloudy, with a high near 34.