Hazard Report Provided By forecast.weather.gov

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
228 AM MST Mon Dec 22 2025

MTZ327-330-221800-
/O.EXT.KTFX.WW.Y.0060.000000T0000Z-251222T1800Z/
Northwest Beaverhead County-Gallatin and Madison County Mountains
and Centennial Mountains-
Including the following locations: Targhee Pass, Big Hole Pass,
West Yellowstone, Wise River, Wisdom, Raynolds Pass, Chief Joseph
Pass, Dewey, and Big Sky
228 AM MST Mon Dec 22 2025

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Snow and mixed precipitation expected. Additional snow
  accumulations up to 2 inches. The snow may mix with light freezing
  rain or drizzle with ice accumulations up to a light glaze. Winds
  may gust as high as 30 mph at times.

* WHERE...Gallatin and Madison County Mountains and Centennial
  Mountains and Northwest Beaverhead County.

* WHEN...Until 11 AM MST this morning.

* IMPACTS...Plan for winter driving conditions. Sidewalks and other
  surfaces may become icy and slippery in areas that observe
  freezing rain or drizzle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.

&&

$$

MTZ330-231230-

URGENT - IMMEDIATE BROADCAST REQUESTED
AVALANCHE WARNING
GALLATIN NATIONAL FOREST AVALANCHE CENTER
Relayed by National Weather Service Great Falls MT
518 AM MST Mon Dec 22 2025

THE FOLLOWING MESSAGE IS TRANSMITTED AT THE REQUEST OF THE
GALLATIN NATIONAL FOREST AVALANCHE CENTER.

515 AM MST Mon Dec 22 2025

The Gallatin National Forest Avalanche Center has issued an
avalanche warning.

* WHAT... The avalanche danger is HIGH on all slopes. Natural and
  human-triggered slides are very likely.

* WHERE...The mountains near Island Park, West Yellowstone

* WHEN...In effect through Tuesday 530 AM MST.

* IMPACTS...Heavy snowfall on a snowpack with unstable weak layers
  will make human triggered avalanches very likely.

* PRECAUTIONARY / PREPAREDNESS ACTIONS...Very dangerous avalanche
  conditions exist. Backcountry travelers should stay off steep
  slopes and away from the bottom of steep slopes. Avalanches can
  be triggered from flat terrain. Steep slopes can avalanche far
  above and run into lower-angled terrain.

Consult http://www.mtavalanche.com or www.avalanche.org for more
detailed information.

Similar avalanche danger may exist at locations outside the
coverage area of this or any avalanche center.

$$

Hazard Report Provided By forecast.weather.gov