Red Flag Warnings along with Special Weather Statements for snow this weekend. It's classic Fall in the Rocky Mountains. Snow is expected in Yellowstone National Park and the Tetons by Sunday.

The area of Teton Pass is expected to get some pretty sketchy weather, with the rapid drop in temps, snow developing and winds picking up. Please make sure your plans are flexible and your vehicle is in proper shape for changing conditions.

Some higher elevations around western Montana might get a few inches of snow too when temperatures drop drastically after what is expected to be a very nice Saturday.

Be aware of these drastic changes if you're planning a trip to the Park this weekend. The drop in temperature will be quite drastic even if the expected snow doesn't show up!

According to the National Weather Service:

  • A strong storm will bring much colder temperatures and snow late Saturday night and Sunday.
  • The following details are a special weather statement from the National Weather Service Office located in Riverton.
  • WHAT...Rain will be changing to snow late on Saturday night or early Sunday morning.
  • The snow level will lower to 6000 feet by early Sunday morning.
  • Snowfall of 3 to 5 inches of snow is expected in the mountains with higher amounts of snow possible above 9000 feet.
  • Snowfall amounts in the lower elevations are expected to be minimal, due to the recent warm temperatures.
  • High temperatures will be 20 to 30 degrees colder on Sunday.
  • WHERE...Western portions of Wyoming, including Teton Pass and Yellowstone National Park.
  • WHEN...Late Saturday night through Sunday night.
  • Teton and Togwotee Passes will be most impacted by the snow.
  • Wet to slushy roads will be possible Sunday morning.
  • Hunters and other outdoor enthusiasts should prepare for a rapid change to cold and wet weather, which can be quite dangerous when you are not prepared.
  • Expect winds to develop all day on Saturday and becoming gusty, continuing Saturday night into Sunday morning.