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

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 1.00 mi
Last update NA
Extended Forecast for

6 Miles S Rafter J Ranch WY

  • Overnight

    Overnight: Snow.  Low around 30. South wind 7 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 90%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Snow

  • Wednesday

    Wednesday: Rain and snow before 11am, then a chance of rain between 11am and 4pm.  High near 40. Breezy, with a south wind 8 to 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow and
    Breezy then
    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. South wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 37. South southeast wind 6 to 13 mph becoming southwest in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after 11pm.  Mostly cloudy, with a low around 24. South southwest wind 7 to 10 mph.

    Low: 24 °F

    Slight Chance
    Snow

  • Friday

    Friday: A 20 percent chance of snow.  Partly sunny, with a high near 40. Southwest wind 3 to 7 mph.

    High: 40 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20. Southwest wind 7 to 11 mph.

    Low: 20 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Overnight
Snow. Low around 30. South wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Rain and snow before 11am, then a chance of rain between 11am and 4pm. High near 40. Breezy, with a south wind 8 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
Partly cloudy, with a low around 28. South wind 11 to 13 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 37. South southeast wind 6 to 13 mph becoming southwest in the afternoon.
Thursday Night
A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 24. South southwest wind 7 to 10 mph.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 40. Southwest wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 20. Southwest wind 7 to 11 mph.
Saturday
Sunny, with a high near 41.
Saturday Night
Mostly clear, with a low around 13.
Sunday
Sunny, with a high near 43.
Sunday Night
Partly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 40.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 24.
Tuesday
Snow showers likely. Mostly cloudy, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Rafter J Ranch WY
 43.35°N 110.79°W (Elev. 7799 ft)
12:01 am MST Dec 10, 2025
12am 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