These naturals occurred during or just after the storm on Saturday night into Sunday. These areas have been loaded by strong S-SW winds that accompanied our latest storm.
09-10
This natural slide released on a north facing slope around 9,500 ft. Strong S-SW winds loaded north and east facing slopes over the past few days. This slab failed on a thin layer of near surface facets about 1.5 feet below the surface. Photo Anonymous
GNFAC Avalanche Advisory for Sat Apr 3, 2010
Snowpack and Avalanche Discussion
The Bridger, Gallatin and Madison Ranges, the Lionhead area near West Yellowstone, the mountains around Cooke City and the Washburn Range:
GNFAC Avalanche Advisory for Fri Apr 2, 2010
Snowpack and Avalanche Discussion
The Bridger, Gallatin and Madison Ranges, the Lionhead area near West Yellowstone, the mountains around Cooke City and the Washburn Range:
GNFAC Avalanche Forecast for Thu Apr 1, 2010
Snowpack and Avalanche Discussion
The Bridger, Gallatin and Madison Ranges, the Lionhead area near West Yellowstone, the mountains around Cooke City and the Washburn Range:
These slides on Fan Mountain near Big Sky were observed early Wednesday morning following a storm that produced nearly a foot of heavy snow. Photo - S. Reznicek
This slide occured just south of Cooke City on WNW aspect of Woody Ridge. Debris was from many other slides that ripped during the storm, but the crowns were hard to see, as winds rapidly reloaded the starting zones. Photo - B. Fredlund
GNFAC Avalanche Forecast for Wed Mar 31, 2010
Snowpack and Avalanche Discussion
The Bridger, Gallatin and Madison Ranges, the Lionhead area near West Yellowstone, the mountains around Cooke City and the Washburn Range:
GNFAC Avalanche Advisory for Tue Mar 30, 2010
Snowpack and Avalanche Discussion
The Bridger, northern Gallatin and northern Madison Ranges:
The last few days have been windy. In the northern mountains these winds stripped south facing slopes of any loose snow, creating drifts on more northerly aspects. On Sunday, skiers on Mt. Blackmore up Hyalite abandoned their plans to ski the north face. Natural slides broke 1 to 1.5 feet deep on a layer of small facets that formed a few weeks ago. This layer will be our primary avalanche concern with today's snowfall. It's found throughout southwest Montana will get more unstable as the day progresses.
GNFAC Avalanche Advisory for Mon Mar 29, 2010
Snowpack and Avalanche Discussion
The Bridger Range, Gallatin and Madison Ranges, the Lionhead area near West Yellowstone, the mountains around Cooke City and the Washburn Range:
Springtime in Montana is known for its unpredictable weather that to keeps us guessing. This spring has been no exception. March entered more like a lamb than a lion, but is roaring on its way out. Snow producing systems keep lining up, and after a couple of fair weather days, yet another is heading down the barrel towards southwest Montana.