Doug Chabot, of the Gallatin National Forest Avalanche Center, demonstrates an Extended Column Test (ECT). Editors note: even though this was an ECT 27, this still represents danger in that it easily sheered across the column.
Doug Chabot of the Galatin National Forest Avalanche Center describes a very weak snowpack in the Northern Madison Range of SW Montana.
Karl Birkeland describes the thin, weak snowpack in the northern Bridger Range outside Bozeman, MT. Compression Test Score of CT1,Q1 (not many taps and a clean planar shear) shows the instability. Snowpit was on a 25 degree slope.
Doug Chabot of the Gallatin National Forest Avalanche Center investigates an avalanche on Lionhead near West Yellowstone, MT. The slide was likely triggered 1-14-07 by a snowmobiler. The average slope angle was 37 degrees; the crown was 2-3 feet deep; and the slide was 250' wide x 600' vertical.
Massive Avalanche - Mt. Ruepehu The avalanche was triggered during avalanche control work in September, 2003 on the Mangaehuehu Glacier, which is right beside the Mt. Ruepehu ski area in New Zealand. The Mangaehuehu Glacier is a favourite out of area ski run.
Verbier, Switzerland. Skiing on an official off piste slope.
March 14th 2006, Nice sunny day, no clouds, no wind. Avalanche risk level 3 of 5. I'm the guy skiing (not the guy filming). I have skied out of the avalanche to the right behind the rock.
See for yourself.
Note: We were equipped with Ortovox avalanche systems, shovels, probes etc.
Avalanche off Baldy Peak in Alta, UT. Recorded from a Wasatch Powderguides Helicopter.
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