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

DW7095 Clark (D7095)

Lat: 44.90317°NLon: 109.17183°WElev: 4270.0ft.

30°F

-1°C

Humidity	79%
Wind Speed	N 3 MPH
Barometer	30.12 in (1019.98 mb)
Dewpoint	24°F (-4°C)
Visibility	NA
Last update	10 Dec 12:45 AM MST

More Information:

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

Extended Forecast for

21 Miles W Ralston WY

Winter Storm Warning December 10, 01:09am until December 10, 05:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 10, 01:09am until December 10, 05:00pm
NOW until 5:00pm Wed
Winter Storm Warning
Overnight
Low: 27 °F
Chance Snow
and Patchy
Blowing Snow
Wednesday
High: 43 °F
Rain/Snow
Likely and
Patchy
Blowing Snow
Wednesday Night
Low: 37 °F
Partly Cloudy
and Very
Windy
Thursday
High: 43 °F
Mostly Sunny
and Very
Windy then
Chance
Rain/Snow and
Windy
Thursday Night
Low: 29 °F
Chance Snow
and Blustery
Friday
High: 38 °F
Chance Snow
and Breezy
Friday Night
Low: 29 °F
Partly Cloudy
and Very
Windy
Saturday
High: 36 °F
Mostly Sunny
and Windy

Detailed Forecast

Overnight

A 40 percent chance of snow, mainly after 4am. Patchy blowing snow after 3am. Mostly cloudy, with a low around 27. Breezy, with a west southwest wind 10 to 15 mph, with gusts as high as 20 mph. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

Rain and snow likely before 11am, then a chance of rain between 11am and 4pm. Patchy blowing snow before 7am. Snow level rising to 8900 feet in the afternoon. Mostly sunny, with a high near 43. Windy, with a west wind 22 to 27 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Wednesday Night

Partly cloudy, with a low around 37. Very windy, with a west wind 43 to 49 mph, with gusts as high as 65 mph.

Thursday

A slight chance of snow between noon and 1pm, then a chance of rain and snow. Mostly sunny, with a high near 43. Very windy, with a west wind 39 to 49 mph decreasing to 28 to 38 mph in the afternoon. Winds could gust as high as 65 mph. Chance of precipitation is 30%.

Thursday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 29. Blustery, with a west northwest wind 13 to 21 mph, with gusts as high as 26 mph. New snow accumulation of less than a half inch possible.

Friday

A 40 percent chance of snow, mainly before 11am. Partly sunny, with a high near 38. Breezy, with a west wind 16 to 24 mph, with gusts as high as 34 mph.

Friday Night

Partly cloudy, with a low around 29. Very windy, with a west wind 38 to 48 mph, with gusts as high as 65 mph.

Saturday

Mostly sunny, with a high near 36. Windy.

Saturday Night

Partly cloudy, with a low around 31. Windy.

Sunday

Mostly sunny, with a high near 43. Windy.

Sunday Night

Partly cloudy, with a low around 32. Windy.

Monday

Mostly sunny, with a high near 41. Windy.