Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

34°F

1°C

Humidity	66%
Wind Speed	SSE 4 MPH
Barometer	NA
Dewpoint	24°F (-4°C)
Visibility	NA
Wind Chill	30°F (-1°C)
Last update	10 Dec 04:15 AM MST

More Information:

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

Extended Forecast for

5 Miles N Mount Holmes WY

Winter Storm Warning December 10, 05:01am until December 10, 05:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 10, 05:01am until December 10, 05:00pm
NOW until 5:00pm Wed
Winter Storm Warning
Overnight
Low: 25 °F
Snow and
Patchy
Blowing Snow
Wednesday
High: 33 °F
Snow and
Patchy
Blowing Snow
Wednesday Night
Low: 26 °F
Mostly Cloudy
and Windy
Thursday
High: 30 °F
Chance Snow
and Windy
Thursday Night
Low: 26 °F
Chance Snow
and Breezy
Friday
High: 29 °F
Chance Snow
and Breezy
Friday Night
Low: 21 °F
Mostly Cloudy
and Windy
Saturday
High: 28 °F
Partly Sunny
and Breezy
then Mostly
Sunny

Detailed Forecast

Overnight

Snow. Patchy blowing snow. Steady temperature around 25. Breezy, with a west southwest wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 2 inches possible.

Wednesday

Snow, mainly before 8am. Patchy blowing snow. High near 33. Breezy, with a west southwest wind 17 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Wednesday Night

Mostly cloudy, with a low around 26. Windy, with a southwest wind 26 to 29 mph, with gusts as high as 46 mph.

Thursday

A 40 percent chance of snow, mainly after 1pm. Mostly cloudy, with a high near 30. Windy, with a southwest wind 21 to 26 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 43 mph. New snow accumulation of less than a half inch possible.

Thursday Night

A 50 percent chance of snow. Cloudy, with a low around 26. Breezy, with a southwest wind 16 to 20 mph, with gusts as high as 33 mph. New snow accumulation of 1 to 3 inches possible.

Friday

A 50 percent chance of snow. Mostly cloudy, with a high near 29. Breezy, with a southwest wind 16 to 21 mph, with gusts as high as 34 mph.

Friday Night

Mostly cloudy, with a low around 21. Windy, with a southwest wind 20 to 26 mph, with gusts as high as 44 mph.

Saturday

Mostly sunny, with a high near 28. Breezy.

Saturday Night

Partly cloudy, with a low around 16.

Sunday

Mostly sunny, with a high near 29. Breezy.

Sunday Night

Partly cloudy, with a low around 17. Breezy.