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10-11
This large avalanche on the northesast face of Fan Mountain slid on Saturday, April 16, between 2-4 pm. Fan Mt. is located to the west of Lone Peak in the Madison Range. Photo: Brad Carpenter/Moonlight Basin Snow Safety
GNFAC Avalanche Advisory for Mon Apr 11, 2011
Snowpack and Avalanche Discussion
Some avalanche concerns to keep in mind:
1. WIDESPREAD INSTABILITY
This avalanche was triggered from the ridge. It broke 3-5 feet deep, 300 feet wide and ran 500 feet vertical. It ran on an older layer of facets. The slope was 28-35 degrees and faced southeast at 9,600 feet. No one was caught. Photo: Anon
Forecast link: GNFAC Avalanche Advisory for Mon Apr 11, 2011
This avalanche was triggered by a skier on a thin spot (24") of the skin track. Photo: Anon
Forecast link: GNFAC Avalanche Advisory for Mon Apr 11, 2011
GNFAC Avalanche Forecast for Sun Apr 10, 2011
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 Sat Apr 9, 2011
Snowpack and Avalanche Discussion
The Bridger Range:
GNFAC Avalanche Forecast for Fri Apr 8, 2011
Snowpack and Avalanche Discussion
The Bridger Range:
This natural avalanche occurred on Tuesday near Cooke City. Most avalanches will break within snow that has fallen this week but with so much new snow they can be several feet deep. Photo: S. Matolyak