Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

OLD FAITHFUL RANGER STATION (OFAW4)

Lat: 44.456667°NLon: 110.849444°WElev: 7332.0ft.

24°F

-4°C

Humidity	100%
Wind Speed	NNE 0 MPH
Barometer	NA
Dewpoint	24°F (-4°C)
Visibility	NA
Last update	24 Dec 04:15 AM MST

More Information:

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

Extended Forecast for

Old Faithful WY

Today
High: 42 °F
Slight Chance
Rain/Snow
then
Rain/Snow and
Breezy
Tonight
Low: 32 °F
Rain/Snow and
Breezy
Christmas Day
High: 39 °F
Rain/Snow
then Snow
Thursday Night
Low: 25 °F
Snow
Friday
High: 34 °F
Snow
Friday Night
Low: 16 °F
Snow Likely
Saturday
High: 26 °F
Snow Likely
Saturday Night
Low: 4 °F
Partly Cloudy
Sunday
High: 24 °F
Partly Sunny

Detailed Forecast

Today

Rain likely, possibly mixed with snow before 4pm, then rain. Snow level rising to 8600 feet in the afternoon. High near 42. Breezy, with a south wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tonight

Rain before 11pm, then rain and snow. Snow level 8900 feet lowering to 8200 feet after midnight . Low around 32. Breezy, with a south wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Christmas Day

Snow, possibly mixed with rain, becoming all snow after 10am. Some thunder is also possible. High near 39. South southwest wind 5 to 7 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

Thursday Night

Snow. Low around 25. South southwest wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Friday

Snow. High near 34. Southwest wind 7 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Friday Night

Snow likely, mainly before 11pm. Mostly cloudy, with a low around 16. Southwest wind around 8 mph. Chance of precipitation is 60%.

Saturday

Snow likely. Mostly cloudy, with a high near 26. West southwest wind around 7 mph. Chance of precipitation is 70%.

Saturday Night

Partly cloudy, with a low around 4.

Sunday

Partly sunny, with a high near 24.