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

Winter Weather Advisory in effect from December 26, 04:00 AM PST until December 27, 07:00 AM PST

Current conditions at

SISTERS (K6K5)

Lat: 44.30445°NLon: 121.53909°WElev: 3168.0ft.

30°F

-1°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	29.57 in (1001.36 mb)
Dewpoint	28°F (-2°C)
Visibility	NA
Last update	25 Dec 01:55 AM PST

More Information:

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

Extended Forecast for

8 Miles SW Sisters OR

Winter Weather Advisory December 26, 04:00am until December 27, 07:00am

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 27 °F
Chance Snow
and Patchy
Fog
Christmas Day
High: 40 °F
Chance
Rain/Snow and
Patchy Fog
Thursday Night
Low: 25 °F
Chance Snow
then Snow
Likely
Friday
High: 36 °F
Snow
Friday Night
Low: 21 °F
Snow
Saturday
High: 30 °F
Chance Snow
then Slight
Chance Snow
Saturday Night
Low: 17 °F
Mostly Cloudy
Sunday
High: 36 °F
Mostly Sunny
Sunday Night
Low: 21 °F
Partly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of snow. Patchy fog. Otherwise, mostly cloudy, with a low around 27. Calm wind. Total nighttime snow accumulation of less than a half inch possible.

Christmas Day

A chance of snow before 7am, then a chance of rain and snow between 7am and 1pm, then a chance of snow after 1pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 40. South wind 6 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Thursday Night

Snow likely, mainly after 1am. Mostly cloudy, with a low around 25. Southwest wind around 6 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Friday

Snow. High near 36. Southwest wind 6 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday Night

Snow, mainly before 4am. Low around 21. West wind 10 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Saturday

A 50 percent chance of snow, mainly before 10am. Partly sunny, with a high near 30. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 17.

Sunday

Mostly sunny, with a high near 36.

Sunday Night

Partly cloudy, with a low around 21.

Monday

Mostly sunny, with a high near 41.

Monday Night

Partly cloudy, with a low around 26.