Advisory Archive

This is a trace to an inch of new snow. Winds are generally light at 5-10 mph out of the west and north, except in the Bridgers where they are 15-20 mph and gusting to 35 mph. Temperatures this morning are in teens and low 20s F. Today will be mostly sunny, with high temperatures in the 20s and 30s F. Winds will remain light. Snow showers tonight won’t amount to significant accumulations.

In the last 24 hours 1-2” fell in Cooke City, West Yellowstone and Island Park. Southwest wind is blowing at 10 mph with gusts of 30 mph and mountain temperatures are 20 F. Today will become cloudy with wind blowing 10-20 mph out of the SW and switching NW tonight. By morning the southern mountains will have 1-2” of new snow and a trace to 1” south of Bozeman to Big Sky.

Yesterday 1-2” fell in Cooke City, West Yellowstone and Island Park. West wind is light with gusts to 25 mph and mountain temperatures in the low 20s F. Today will be partly cloudy in the north and mostly cloudy in the south.  In the mountains, 1-2” is expected in the next 24 hours around Cooke City, West Yellowstone and Island Park.

Mountain temperatures are in the 20s F this morning with 5-20 mph winds from the west to the south. The Centennial Mountains received 5” of heavy snow, with a trace to 1” in the mountains around West Yellowstone and Big Sky. Today, temperatures will be in the 20s to 30s F with 5-15 mph winds from the southwest. The mountains around Big Sky, West Yellowstone, and Island Park will get a trace to 1” of new snow by tomorrow morning.

AVALANCHE WARNING

The Gallatin National Forest Avalanche Center is issuing a Backcountry Avalanche Warning for the Centennial Mountains in Island Park. New snow is overloading an exceptionally weak snowpack, creating very dangerous avalanche conditions. Human-triggered avalanches are very likely on all steep slopes. Avoid avalanche terrain and avalanche runout zones. The avalanche danger is rated HIGH on all slopes. Contact the Gallatin National Forest Avalanche Center for more detailed information.

This warning will expire or be updated by 6:00 a.m. on Wednesday, January 24th.

Mountain temperatures are in the teens to 20s F this morning, with west to south winds blowing 10-20 mph. There is 1-2” of new snow south of Big Sky through West Yellowstone and Cooke City, with 3” in Island Park. Today, temperatures will be in the upper 20s to 30s F with 10-20 mph winds from the southwest to the south. The mountains around West Yellowstone and Cooke City will get 1-2” of snow by tomorrow morning, with up to 4” in Island Park.

Since yesterday morning the mountains got 2-5” of new snow, except Hyalite was left out with zero. Temperatures are high 20s to low 30s F this morning. Wind has been from the southwest-west at 15-25 mph with gusts of 35-45 mph and up to 78 mph near Island Park. Today temperatures will reach low to mid-30s F and wind will be from the southwest-west at 10-15 mph with gusts to 25 mph. Light snow showers later today favor Island Park where 2-4” are possible, and 1-2” are possible elsewhere.

A dusting of snow fell yesterday, but no more than an inch accumulated. Winds are 5-15 mph out of the southwest to northwest with gusts of 15-30 mph. Temperatures are in the 20s and low 30s F this morning. High temperatures today will be in the 30s F. Winds today will be 5-15 mph out of the south and southwest. Skies will be partly sunny to mostly cloudy with a few snow showers possible. 2-4 inches of new snow are possible tonight near West Yellowstone and Island Park, with only a dusting expected elsewhere.

There is no new snow. Winds have been west to northwest at 10-20 mph with gusts of 30-45 mph. Temperatures this morning are in the teens and 20s F. High temperatures will be in the 20s F. Winds will be light from the west to southwest. Today will be mostly cloudy with snow showers bringing a trace to 2” of new snow by this afternoon.

In the last 24 hours Cooke City received 10+” of new snow, 5” in the Bridger Range, and 2-3” everywhere else. West to northwest wind is averaging 20-50 mph with gusts of 75 mph. Mountain temperatures are in the single digits F around Bozeman and teens elsewhere. Snowfall has mostly ended, winds will still be strong, but lessen to 20-35 mph. Sunshine may pop through the clouds and tonight the mountains could get a trace to an inch of snow.

Mountain temperatures are in the single digits to teens F this morning, with 15-30 winds from the west to the south. As of 6 a.m., there is 1-2” of new snow from Big Sky through the southern portions of the advisory area, and it is just beginning to snow in the mountains near Bozeman. Today, temperatures will be in the 20s F with 15-30 mph winds from the west to southwest. By tomorrow morning, the mountains around Cooke City will receive 10-14” of new snow, with 4-8” in Island Park and West Yellowstone and 3-6” around Bozeman and Big Sky.