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

2 Miles NE Norris WY

Winter Storm Warning December 10, 05:23am until December 10, 05:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 10, 05:23am until December 10, 05:00pm
NOW until 5:00pm Wed
Winter Storm Warning
Overnight
Low: 30 °F
Snow
Wednesday
High: 40 °F
Rain/Snow
then Chance
Rain/Snow
Wednesday Night
Low: 30 °F
Mostly Cloudy
Thursday
High: 37 °F
Chance Snow
Thursday Night
Low: 28 °F
Chance Snow
Friday
High: 37 °F
Chance Snow
Friday Night
Low: 21 °F
Mostly Cloudy
Saturday
High: 36 °F
Mostly Sunny

Detailed Forecast

Overnight

Snow. Steady temperature around 30. South southwest wind around 6 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.

Wednesday

Rain and snow before 2pm, then a chance of rain between 2pm and 3pm, then a slight chance of rain and snow after 3pm. Snow level rising to 8400 feet in the afternoon. High near 40. Southwest wind 8 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Wednesday Night

Mostly cloudy, with a low around 30. South southwest wind 10 to 14 mph, with gusts as high as 37 mph.

Thursday

A 30 percent chance of snow, mainly after 2pm. Mostly cloudy, with a high near 37. Southwest wind 9 to 11 mph, with gusts as high as 26 mph.

Thursday Night

A 50 percent chance of snow. Cloudy, with a low around 28. Southwest wind around 9 mph, with gusts as high as 26 mph. New snow accumulation of 1 to 2 inches possible.

Friday

A 40 percent chance of snow. Mostly cloudy, with a high near 37. Southwest wind 9 to 11 mph, with gusts as high as 26 mph.

Friday Night

Mostly cloudy, with a low around 21. Southwest wind 7 to 13 mph, with gusts as high as 34 mph.

Saturday

Mostly sunny, with a high near 36.

Saturday Night

Partly cloudy, with a low around 14.

Sunday

Mostly sunny, with a high near 39.

Sunday Night

Partly cloudy, with a low around 17.