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

Current conditions at

TOWER FALLS RANGER STATION AT YELLOWSTONE NP (TFAW4)

Lat: 44.916944°NLon: 110.420556°WElev: 6279.0ft.

33°F

1°C

Humidity	97%
Wind Speed	S 4 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Wind Chill	29°F (-2°C)
Last update	26 Dec 12:15 AM MST

More Information:

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

Extended Forecast for

5 Miles SE Cooke City MT

Winter Weather Advisory December 26, 05:00am until December 26, 11:00pm

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 25 °F
Snow Likely
Friday
High: 30 °F
Snow and
Patchy
Blowing Snow
Friday Night
Low: 15 °F
Chance Snow
and Breezy
Saturday
High: 19 °F
Snow and
Breezy
Saturday Night
Low: -6 °F
Chance Snow
then Slight
Chance Snow
Sunday
High: 11 °F
Sunny
Sunday Night
Low: -2 °F
Mostly Clear
Monday
High: 21 °F
Sunny
Monday Night
Low: 10 °F
Partly Cloudy

Detailed Forecast

Overnight

Snow likely. Mostly cloudy, with a low around 25. West southwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.

Friday

Snow, mainly before 3pm. Patchy blowing snow after 11am. High near 30. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Friday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 15. Breezy, with a west southwest wind 16 to 18 mph, with gusts as high as 25 mph. New snow accumulation of 1 to 2 inches possible.

Saturday

Snow. High near 19. Wind chill values as low as -5. Breezy, with a west southwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Saturday Night

A 50 percent chance of snow, mainly before 11pm. Partly cloudy, with a low around -6. Northwest wind around 7 mph. New snow accumulation of less than one inch possible.

Sunday

Sunny, with a high near 11. West wind 6 to 8 mph.

Sunday Night

Mostly clear, with a low around -2. West wind around 6 mph.

Monday

Sunny, with a high near 21.

Monday Night

Partly cloudy, with a low around 10.

Tuesday

Partly sunny, with a high near 27.

Tuesday Night

Mostly cloudy, with a low around 12.