Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Yellowstone Lake (KP60)

Lat: 44.54444°NLon: 110.42111°WElev: 7835.0ft.

27°F

-3°C

Humidity	80%
Wind Speed	W 8 MPH
Barometer	30.18 in (1022.01 mb)
Dewpoint	22°F (-6°C)
Visibility	NA
Wind Chill	19°F (-7°C)
Last update	08 Dec 02:56 PM MST

More Information:

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

Extended Forecast for

13 Miles ESE Lewis Lake WY

Winter Storm Warning December 8, 05:00pm until December 10, 05:00pm

Click here for hazard details and duration

Winter Storm Warning

This Afternoon
High: 24 °F
Snow Showers
Likely and
Breezy
Tonight
Low: 22 °F⇑
Snow Showers
and Patchy
Blowing Snow
Tuesday
High: 28 °F
Heavy Snow
and Blowing
Snow
Tuesday Night
Low: 23 °F
Snow Showers
and Windy
Wednesday
High: 31 °F
Snow Showers
and Windy
Wednesday Night
Low: 27 °F
Snow Showers
Likely and
Windy
Thursday
High: 28 °F
Snow Showers
Likely and
Breezy
Thursday Night
Low: 27 °F
Snow Showers
Likely and
Breezy
Friday
High: 27 °F
Chance Snow
Showers and
Breezy

Detailed Forecast

This Afternoon

Snow showers likely, mainly before 5pm. Mostly cloudy, with a high near 24. Breezy, with a west southwest wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.

Tonight

Snow showers. Patchy blowing snow. Temperature rising to around 28 by 3am. Windy, with a west southwest wind 22 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Tuesday

Snow showers. The snow could be heavy at times. Widespread blowing snow, mainly before 11am. High near 28. Windy, with a west southwest wind 24 to 29 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

Tuesday Night

Snow showers. Low around 23. Windy, with a west southwest wind 17 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Wednesday

Snow showers. High near 31. Windy, with a west southwest wind 18 to 26 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Wednesday Night

Snow showers likely. Cloudy, with a low around 27. Windy, with a west southwest wind 24 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 70%.

Thursday

Snow showers likely. Cloudy, with a high near 28. Breezy, with a west southwest wind 17 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.

Thursday Night

Snow showers likely, mainly before 11pm. Cloudy, with a low around 27. Breezy. Chance of precipitation is 60%.

Friday

A 50 percent chance of snow showers. Mostly cloudy, with a high near 27. Breezy.

Friday Night

Mostly cloudy, with a low around 21. Breezy.

Saturday

Mostly sunny, with a high near 28. Breezy.

Saturday Night

Partly cloudy, with a low around 17.

Sunday

A slight chance of snow showers. Mostly sunny, with a high near 26.