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.

35°F

2°C

Humidity	59%
Wind Speed	SSE 4 MPH
Barometer	NA
Dewpoint	22°F (-6°C)
Visibility	NA
Wind Chill	32°F (0°C)
Last update	10 Dec 03:15 AM MST

More Information:

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

Extended Forecast for

6 Miles WSW Gardiner MT

Winter Storm Warning December 10, 04:29am until December 10, 05:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 10, 04:29am until December 10, 05:00pm
NOW until 5:00pm Wed
Winter Storm Warning
Overnight
Low: 24 °F
Snow and
Areas Blowing
Snow
Wednesday
High: 32 °F
Snow and
Blowing Snow
Wednesday Night
Low: 25 °F
Mostly Cloudy
and Very
Windy
Thursday
High: 29 °F
Chance Snow
and Very
Windy
Thursday Night
Low: 25 °F
Snow Likely
and Windy
Friday
High: 28 °F
Chance Snow
and Windy
Friday Night
Low: 21 °F
Mostly Cloudy
and Windy
Saturday
High: 25 °F
Mostly Sunny
and Breezy

Detailed Forecast

Overnight

Snow. Areas of blowing snow. Steady temperature around 24. Breezy, with a west southwest wind around 23 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

Wednesday

Snow, mainly before 8am. Widespread blowing snow, mainly before 8am. High near 32. Windy, with a west southwest wind 17 to 26 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Wednesday Night

Mostly cloudy, with a low around 25. Very windy, with a southwest wind 33 to 43 mph, with gusts as high as 48 mph.

Thursday

A 30 percent chance of snow, mainly after 2pm. Partly sunny, with a high near 29. Very windy, with a southwest wind 31 to 41 mph decreasing to 17 to 27 mph.

Thursday Night

Snow likely, mainly after 11pm. Mostly cloudy, with a low around 25. Windy, with a southwest wind 22 to 28 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Friday

A 50 percent chance of snow. Mostly cloudy, with a high near 28. Windy, with a southwest wind 24 to 29 mph decreasing to 16 to 21 mph in the morning. Winds could gust as high as 36 mph.

Friday Night

Mostly cloudy, with a low around 21. Windy, with a south southwest wind 31 to 34 mph, with gusts as high as 43 mph.

Saturday

Mostly sunny, with a high near 25. Breezy.

Saturday Night

Partly cloudy, with a low around 17. Breezy.

Sunday

Mostly sunny, with a high near 27. Breezy.

Sunday Night

Partly cloudy, with a low around 19. Breezy.

Monday

Mostly sunny, with a high near 25. Breezy.