Severe Thunderstorms and Heavy Rainfall from the Lower Mississippi Valley to the Mid-Atlantic; Active Pattern Continues in Hawaii

Scattered severe thunderstorms are expected today from the ArkLaTex and Lower Mississippi Valley through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat today from east Texas into New York. A powerful kona storm will continue to impact Hawaii through Saturday, bringing heavy rainfall, strong winds, and severe thunderstorms. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

13°F

-11°C

Humidity	52%
Wind Speed	SE 5 MPH
Barometer	NA
Dewpoint	-1°F (-18°C)
Visibility	NA
Wind Chill	5°F (-15°C)
Last update	11 Mar 06:15 AM MDT

More Information:

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

Extended Forecast for

5 Miles SSW Mammoth Hot Springs WY

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

Click here for hazard details and duration

Winter Storm Watch

Today
High: 28 °F
Mostly Sunny
and Windy
Tonight
Low: 27 °F
Chance Snow
Showers and
Windy
Thursday
High: 38 °F
Windy. Chance
Snow Showers
then Snow
Showers
Likely
Thursday Night
Low: 31 °F
Snow Showers
Likely and
Windy
Friday
High: 39 °F
Snow Showers
and Breezy
Friday Night
Low: 32 °F
Snow Showers
Likely and
Breezy
Saturday
High: 38 °F
Snow Showers
and Windy
Saturday Night
Low: 12 °F
Snow Showers
Likely and
Blustery then
Chance Snow
Showers
Sunday
High: 27 °F
Chance Snow
Showers

Detailed Forecast

Today

Mostly sunny, with a high near 28. Wind chill values as low as -5. Windy, with a southwest wind 7 to 12 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 39 mph.

Tonight

A 50 percent chance of snow showers, mainly after 9pm. Mostly cloudy, with a low around 27. Windy, with a southwest wind 24 to 31 mph, with gusts as high as 49 mph. New snow accumulation of 1 to 2 inches possible.

Thursday

Snow showers likely, mainly after noon. Mostly cloudy, with a high near 38. Windy, with a southwest wind 26 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Thursday Night

Snow showers likely. Mostly cloudy, with a low around 31. Windy, with a west southwest wind 18 to 25 mph, with gusts as high as 43 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Friday

Snow showers. High near 39. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Friday Night

Snow showers likely. Mostly cloudy, with a low around 32. Breezy, with a southwest wind 17 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 70%.

Saturday

Snow showers. Some thunder is also possible. High near 38. Windy, with a southwest wind 18 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%.

Saturday Night

Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 12. Blustery. Chance of precipitation is 60%.

Sunday

A 30 percent chance of snow showers. Partly sunny, with a high near 27.

Sunday Night

A 40 percent chance of snow showers. Mostly cloudy, with a low around 20.

Monday

A chance of snow showers. Mostly cloudy, with a high near 39.

Monday Night

A chance of rain and snow showers. Snow level 7400 feet. Mostly cloudy, with a low around 30.

Tuesday

A slight chance of showers. Snow level 7600 feet rising to 8700 feet in the afternoon. Partly sunny, with a high near 49.