Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

39°F

4°C

Humidity	66%
Wind Speed	S 11 MPH
Barometer	NA
Dewpoint	28°F (-2°C)
Visibility	NA
Wind Chill	32°F (0°C)
Last update	13 Mar 06:15 AM MDT

More Information:

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

Extended Forecast for

Mammoth WY

Winter Storm Watch March 14, 06:00am until March 14, 11:00pm

Click here for hazard details and duration

Winter Storm Watch

Today
High: 48 °F
Rain/Snow
Likely and
Breezy
Tonight
Low: 38 °F
Chance
Rain/Snow
then
Rain/Snow
Saturday
High: 45 °F
Rain/Snow and
Breezy
Saturday Night
Low: 14 °F
Snow Showers
and Blustery
then Chance
Snow Showers
Sunday
High: 33 °F
Slight Chance
Snow Showers
Sunday Night
Low: 24 °F
Chance Snow
Showers
Monday
High: 46 °F
Chance Snow
Showers then
Chance
Rain/Snow
Monday Night
Low: 38 °F
Chance
Showers
Tuesday
High: 56 °F
Partly Sunny

Detailed Forecast

Today

Rain likely, possibly mixed with snow showers before 5pm, then a chance of rain showers. Snow level 6400 feet rising to 7500 feet in the afternoon. Mostly cloudy, with a high near 48. Breezy, with a south wind 8 to 16 mph becoming west in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Tonight

Rain and snow showers, mainly after midnight. Snow level 7500 feet lowering to 6400 feet after midnight . Low around 38. West wind 6 to 11 mph becoming south southwest after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Saturday

Rain and snow showers, becoming all snow after 3pm. Some thunder is also possible. Snow level 6400 feet lowering to 5700 feet in the afternoon . High near 45. Breezy, with a southwest wind 14 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Saturday Night

Snow showers, mainly before midnight. Low around 14. Blustery, with a north northwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Sunday

A 20 percent chance of snow showers. Partly sunny, with a high near 33. West wind 6 to 10 mph, with gusts as high as 23 mph.

Sunday Night

A 40 percent chance of snow showers, mainly after midnight. Mostly cloudy, with a low around 24. West wind 7 to 10 mph becoming south southwest after midnight. Winds could gust as high as 23 mph.

Monday

A chance of snow showers before noon, then a chance of rain and snow showers. Mostly cloudy, with a high near 46. Southwest wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

Monday Night

A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 38.

Tuesday

Partly sunny, with a high near 56.

Tuesday Night

Mostly cloudy, with a low around 37.

Wednesday

Mostly sunny, with a high near 61.

Wednesday Night

Mostly cloudy, with a low around 40.

Thursday

Mostly sunny, with a high near 65.