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.

32°F

0°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	29.59 in (1002.03 mb)
Dewpoint	30°F (-1°C)
Visibility	NA
Last update	26 Dec 12:55 AM PST

More Information:

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

Extended Forecast for

4 Miles NE 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
Rain/Snow
Friday
High: 41 °F
Rain/Snow
Likely
Friday Night
Low: 24 °F
Rain/Snow
Likely then
Chance Snow
Saturday
High: 35 °F
Chance Snow
then Mostly
Sunny
Saturday Night
Low: 17 °F
Mostly Cloudy
Sunday
High: 37 °F
Mostly Sunny
Sunday Night
Low: 19 °F
Partly Cloudy
Monday
High: 39 °F
Sunny
Monday Night
Low: 21 °F
Mostly Cloudy

Detailed Forecast

Overnight

Snow, possibly mixed with rain. Snow level 3500 feet. Low around 27. Calm wind. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

Friday

Snow likely, possibly mixed with rain, mainly after 1pm. Snow level rising to 3800 feet in the afternoon. Mostly sunny, with a high near 41. Light south wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Friday Night

Snow likely, possibly mixed with rain before 7pm, then a chance of snow. Partly cloudy, with a low around 24. West wind 10 to 13 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday

A 40 percent chance of snow before 10am. Partly sunny, with a high near 35. West wind around 8 mph, with gusts as high as 21 mph.

Saturday Night

Mostly cloudy, with a low around 17. Calm wind.

Sunday

Mostly sunny, with a high near 37.

Sunday Night

Partly cloudy, with a low around 19.

Monday

Sunny, with a high near 39.

Monday Night

Mostly cloudy, with a low around 21.