WWUS45 KRIW 160511
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1111 PM MDT Sat Mar 15 2025

WYZ001-012-170000-
/O.NEW.KRIW.WW.Y.0015.250316T0511Z-250317T0000Z/
Yellowstone National Park-Teton and Gros Ventre Mountains-
Including the cities of Mammoth, Old Faithful, and Lake
1111 PM MDT Sat Mar 15 2025

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT SUNDAY...

* WHAT...Snow. Total snow accumulations between 9 and 15 inches over
  the Pitchstone Plateau of southwest Yellowstone and the
  Tetons/Gros Ventres. Total accumulations 1 to 5 inches elsewhere
  in Yellowstone. Winds gusting as high as 55 mph, strongest Sunday
  afternoon.

* WHERE...Teton and Gros Ventre Mountains and Yellowstone National
  Park.

* WHEN...Until 6 PM MDT Sunday.

* IMPACTS...Travel could be very difficult along mountain passes and
  in the backcountry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter.

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.

&&

$$

For more information from the National Weather Service, visit
https://weather.gov/riw/ .

Wittmann