Including the cities of Lake, Mammoth, and Old Faithful
National Weather Service Riverton WY May 22 2020
Yellowstone National Park-Absaroka Mountains-Teton and Gros Ventre Mountains-Wind River Mountains West-Wind River Mountains East-Salt River and Wyoming Ranges-Including the cities of Lake, Mammoth, and Old Faithful
…Snow for the mountains tonight through Saturday evening…
* WHAT…Snow. Snowfall of 3 to 6 inches below 9000 feet. Snowfall of 6 to 10 inches above 9000 feet.
* WHERE…Western Wyoming Mountains and Yellowstone National Park.
* ADDITIONAL DETAILS…Teton Pass and Togwotee Pass will see winter driving conditions late tonight and Saturday morning.
Those planning outdoor activities in the high country should be prepared for cold and snow.
Thanks to Kenneth Lund for this link