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NOAA is forecasting 12-20″ of snow to fall at Grand Targhee & Jackson Hole, WY.

* SNOW AMOUNTS...12 to 20 inches over the Teton mountains, 
and 6 to 12 inches over the Gros Ventre Range.
- NOAA, Riverton WY, 3/14/10

NOAA has issued a Winter Storm Warning.

Grand Targhee has seen 366″ of snowfall this season.

Jackson Hole has seen 440″ of snowfall this season.

.A moist southwest flow along with upper level support will bring
significant snowfall across portions of western Wyoming today and
Sunday. The snow is expected to develop quickly this morning over
much of western Wyoming. The snow will gradually lift north this
evening, and be focused mainly over the far northwest tonight,
before shifting back southward early Sunday morning.
- NOAA, Riverton WY, 3/14/20

Winter Storm Warning for Wyoming

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
821 AM MDT Sat Mar 14 2020

...Significant Snow over portions of Western Wyoming Today into
Sunday...

.A moist southwest flow along with upper level support will bring
significant snowfall across portions of western Wyoming today and
Sunday. The snow is expected to develop quickly this morning over
much of western Wyoming. The snow will gradually lift north this
evening, and be focused mainly over the far northwest tonight,
before shifting back southward early Sunday morning.

Teton and Gros Ventre Mountains-

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SUNDAY...

* WHAT...Periods of snow, heavy at times.

* WHERE...Teton and Gros Ventre Mountains.

* WHEN...Through 6 PM Sunday. The heaviest snow is expected between
  10 AM and 10 PM today.

* SNOW AMOUNTS...12 to 20 inches over the Teton mountains, and 6 to
  12 inches over the Gros Ventre Range.

* IMPACTS...Travel could be very difficult over mountain passes.
  People in the backcountry could become disorientated and lost due
  to low visibility in snow.

* ADDITIONAL DETAILS...Please monitor the Bridger-Teton Avalanche
  Center at jhavalanche.org, if your plans include travel into the
  backcountry.