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 >

Current conditions at

Alpine (K46U)

Lat: 43.1846°NLon: 111.0424°WElev: 5634.0ft.

Mist

34°F

1°C

Humidity NA
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint N/A
Visibility 3.00 mi
Last update NA
Extended Forecast for

7 Miles ENE Etna WY

Winter Weather Advisory December 10, 05:07am until December 10, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 10, 05:07am until December 10, 05:00pm

    NOW until 5:00pm Wed

    Winter Weather Advisory

  • Overnight

    Low: 31 °F

    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain and snow before 11am, then a chance of rain between 11am and 4pm.  Snow level 8000 feet rising to 8700 feet in the afternoon. High near 39. Breezy, with a west wind 11 to 17 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow and
    Breezy then
    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. West southwest wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 37. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 37 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. South southwest wind 6 to 10 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of snow before 11am.  Mostly sunny, with a high near 35. Southwest wind 5 to 8 mph.

    High: 35 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21. Southwest wind 5 to 10 mph.

    Low: 21 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

Detailed Forecast

Overnight
Rain and snow likely. Snow level 7900 feet. Cloudy, with a low around 31. West southwest wind around 13 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.
Wednesday
Rain and snow before 11am, then a chance of rain between 11am and 4pm. Snow level 8000 feet rising to 8700 feet in the afternoon. High near 39. Breezy, with a west wind 11 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 30. West southwest wind 7 to 13 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 37. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 25. South southwest wind 6 to 10 mph.
Friday
A 20 percent chance of snow before 11am. Mostly sunny, with a high near 35. Southwest wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 21. Southwest wind 5 to 10 mph.
Saturday
Sunny, with a high near 36.
Saturday Night
Mostly clear, with a low around 19.
Sunday
Sunny, with a high near 37.
Sunday Night
Mostly clear, with a low around 20.
Monday
Mostly sunny, with a high near 35.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 27.
Tuesday
Snow showers likely. Mostly cloudy, with a high near 33.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Etna WY
 43.08°N 110.89°W (Elev. 7730 ft)
4:47 am MST Dec 10, 2025
5am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database