Notice of NWS' New Version of Forecast
A new version of Forecast will launch March 7, 2017.
Click here to visit the new site for details.

Strong Pacific Storm System Bringing Heavy Rain, Mountain Snow and Strong Wind to California

Another Pacific storm system will bring a continued threat for heavy rain, very heavy mountain snow, and strong winds to California through Tuesday. The threat of flooding, landslides, and avalanches will create dangerous travel conditions in many parts of the state. In addition, downed trees and power lines could lead to scattered power outages. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

NA

31°F

-1°C

Humidity 66%
Wind Speed S 5 G 8 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill26°F (-3°C)
Last update 20 Feb 12:15 am MST
Extended Forecast for

Mammoth WY

Winter Storm Watch February 20, 05:00pm until February 22, 12:00am
Click here for hazard details and duration
Winter Storm Watch
  • Overnight

    Overnight: A 30 percent chance of snow.  Cloudy, with a low around 26. South southwest wind 7 to 10 mph.

    Chance Snow

    Low: 26 °F

  • Washington's
    Birthday

    Washington's Birthday: Snow likely before 11am, then a chance of rain and snow between 11am and 2pm, then rain likely after 2pm.  Cloudy, with a high near 41. Windy, with a south southwest wind 7 to 12 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Rain/Snow
    Likely and
    Windy

    High: 41 °F

  • Monday
    Night

    Monday Night: Rain and snow likely, becoming all snow after 11pm.  Cloudy, with a low around 34. Breezy, with a south southwest wind 14 to 23 mph, with gusts as high as 32 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Breezy.
    Rain/Snow
    Likely then
    Snow Likely

    Low: 34 °F

  • Tuesday

    Tuesday: Snow likely before 11am, then rain likely.  Cloudy, with a high near 42. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 33 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Breezy.
    Rain/Snow
    Likely then
    Rain Likely

    High: 42 °F

  • Tuesday
    Night

    Tuesday Night: A chance of rain and snow before 11pm, then a slight chance of snow.  Mostly cloudy, with a low around 23. Breezy, with a southwest wind 10 to 17 mph, with gusts as high as 24 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Chance
    Rain/Snow and
    Breezy then
    Slight Chance
    Snow

    Low: 23 °F

  • Wednesday

    Wednesday: A 40 percent chance of snow.  Cloudy, with a high near 33. Southwest wind around 9 mph.

    Chance Snow

    High: 33 °F

  • Wednesday
    Night

    Wednesday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 11. West wind 5 to 7 mph becoming northeast in the evening.

    Chance Snow

    Low: 11 °F

  • Thursday

    Thursday: A 40 percent chance of snow.  Mostly cloudy, with a high near 26.

    Chance Snow

    High: 26 °F

  • Thursday
    Night

    Thursday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 10.

    Chance Snow

    Low: 10 °F

Detailed Forecast

Overnight
A 30 percent chance of snow. Cloudy, with a low around 26. South southwest wind 7 to 10 mph.
Washington's Birthday
Snow likely before 11am, then a chance of rain and snow between 11am and 2pm, then rain likely after 2pm. Cloudy, with a high near 41. Windy, with a south southwest wind 7 to 12 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday Night
Rain and snow likely, becoming all snow after 11pm. Cloudy, with a low around 34. Breezy, with a south southwest wind 14 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Snow likely before 11am, then rain likely. Cloudy, with a high near 42. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
A chance of rain and snow before 11pm, then a slight chance of snow. Mostly cloudy, with a low around 23. Breezy, with a southwest wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Wednesday
A 40 percent chance of snow. Cloudy, with a high near 33. Southwest wind around 9 mph.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 11. West wind 5 to 7 mph becoming northeast in the evening.
Thursday
A 40 percent chance of snow. Mostly cloudy, with a high near 26.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 10.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 25.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 8.
Saturday
A slight chance of snow. Mostly cloudy, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
A chance of snow. Partly sunny, with a high near 29.
Click Map For Forecast
Point Forecast:
Mammoth WY
 44.98°N 110.69°W (Elev. 5745 ft)
11:43 pm MST Feb 19, 2017
12am MST Feb 20, 2017-6pm MST Feb 25, 2017
 
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