Notice of NWS' New Version of Forecast
A new version of Forecast will launch Janurary 10, 2017.
Click here to visit the new site for details.

Heavy Snowfall expected over the Intermountain West and the Great Lakes

A series of storm systems will bring heavy snowfall to much of the Intermountain West through the weekend. Snow will also spread onto the northern Plains with travel difficulties possible. Heavy Lake Effect snow will continue in favored locations downwind of the Great Lakes with western New York picking up storm total amounts of 2 to 3 feet. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

Lat: 44.97722°NLon: 110.69528°WElev: 6299ft.

NA

15°F

-9°C

Humidity 77%
Wind Speed N 2 G 4 MPH
Barometer NA
Dewpoint 9°F (-13°C)
Visibility NA
Last update 09 Dec 2:15 am MST
Extended Forecast for

5 Miles ESE Mount Holmes WY

Winter Storm Warning until December 10, 12:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until December 10, 12:00pm

    NOW until
    12:00pm Sat

    Winter Storm Warning

  • Overnight

    Overnight: Snow likely.  Cloudy, with a low around 2. Wind chill values as low as -5. Southwest wind around 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. Total nighttime snow accumulation of around an inch possible.

    Snow Likely

    Low: 2 °F

  • Friday

    Friday: Snow.  High near 23. Wind chill values as low as zero. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Snow and
    Breezy

    High: 23 °F

  • Friday
    Night

    Friday Night: Snow before 8pm, then snow showers after 8pm.  Low around 19. Breezy, with a southwest wind 15 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Snow and
    Breezy

    Low: 19 °F

  • Saturday

    Saturday: Snow showers likely.  Cloudy, with a high near 26. Breezy, with a west southwest wind 13 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Snow Showers
    Likely and
    Breezy

    High: 26 °F

  • Saturday
    Night

    Saturday Night: A 50 percent chance of snow showers.  Mostly cloudy, with a low around 10. Southwest wind 9 to 14 mph, with gusts as high as 21 mph.  New snow accumulation of 1 to 2 inches possible.

    Chance Snow
    Showers

    Low: 10 °F

  • Sunday

    Sunday: A 50 percent chance of snow showers.  Mostly cloudy, with a high near 18. Breezy, with a southwest wind 13 to 15 mph, with gusts as high as 23 mph.

    Chance Snow
    Showers and
    Breezy

    High: 18 °F

  • Sunday
    Night

    Sunday Night: A chance of snow showers before 11pm, then a chance of snow after 11pm.  Cloudy, with a low around 9. West southwest wind 9 to 11 mph.  Chance of precipitation is 50%.

    Chance Snow
    Showers

    Low: 9 °F

  • Monday

    Monday: A 50 percent chance of snow.  Cloudy, with a high near 17.

    Chance Snow

    High: 17 °F

Detailed Forecast

Overnight
Snow likely. Cloudy, with a low around 2. Wind chill values as low as -5. Southwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of around an inch possible.
Friday
Snow. High near 23. Wind chill values as low as zero. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Friday Night
Snow before 8pm, then snow showers after 8pm. Low around 19. Breezy, with a southwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Saturday
Snow showers likely. Cloudy, with a high near 26. Breezy, with a west southwest wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 10. Southwest wind 9 to 14 mph, with gusts as high as 21 mph. New snow accumulation of 1 to 2 inches possible.
Sunday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 18. Breezy, with a southwest wind 13 to 15 mph, with gusts as high as 23 mph.
Sunday Night
A chance of snow showers before 11pm, then a chance of snow after 11pm. Cloudy, with a low around 9. West southwest wind 9 to 11 mph. Chance of precipitation is 50%.
Monday
A 50 percent chance of snow. Cloudy, with a high near 17.
Monday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 0.
Tuesday
A 20 percent chance of snow. Partly sunny and cold, with a high near 9.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around -11.
Wednesday
Partly sunny and cold, with a high near 8.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around -4.
Thursday
A slight chance of snow. Cloudy, with a high near 14.
Click Map For Forecast
Point Forecast:
5 Miles ESE Mount Holmes WY
 44.81°N 110.75°W (Elev. 7641 ft)
1:58 am MST Dec 9, 2016
2am MST Dec 9, 2016-6pm MST Dec 15, 2016
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database