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, 08:00 AM MST until December 27, 02:00 PM MST

Current conditions at

GIBSON DAM WEATHER STATION NEAR AUGUSTA 19WNW (GDMM8)

Lat: 47.60111°NLon: 112.75472°WElev: 4604.0ft.

38°F

3°C

Humidity	NA
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

33 Miles ENE Condon MT

Winter Weather Advisory December 26, 08:00am until December 27, 02:00pm

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 25 °F
Slight Chance
Snow Showers
Friday
High: 32 °F
Heavy Snow
and Breezy
Friday Night
Low: 13 °F
Snow and
Breezy
Saturday
High: 16 °F
Snow
Saturday Night
Low: -3 °F
Slight Chance
Snow then
Mostly Cloudy
Sunday
High: 16 °F
Mostly Sunny
Sunday Night
Low: 8 °F
Partly Cloudy
Monday
High: 26 °F
Mostly Sunny
Monday Night
Low: 17 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 20 percent chance of snow showers before 4am. Mostly cloudy, with a low around 25. Southwest wind 13 to 15 mph, with gusts as high as 22 mph.

Friday

Snow, mainly before 4pm. The snow could be heavy at times. High near 32. Breezy, with a south southwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Friday Night

Snow. Low around 13. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Saturday

Snow. High near 16. Wind chill values as low as -10. West southwest wind 8 to 16 mph becoming east northeast in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Saturday Night

A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around -3. West wind 5 to 7 mph.

Sunday

Mostly sunny, with a high near 16. West wind 7 to 10 mph.

Sunday Night

Partly cloudy, with a low around 8. West wind around 8 mph.

Monday

Mostly sunny, with a high near 26. West wind 8 to 10 mph, with gusts as high as 18 mph.

Monday Night

Mostly cloudy, with a low around 17.

Tuesday

Mostly cloudy, with a high near 32.