Riders observed many natural avalanches at Lionhead. Photo: A Steckmest
Avalanche Details: Many Natural Avalanches Lionhead Area
Lionhead Range, 2023-03-13
Island Park
Riders observed many natural avalanches at Lionhead. Photo: A Steckmest
Avalanche Details: Many Natural Avalanches Lionhead Area
Lionhead Range, 2023-03-13
Riders observed many natural avalanches at Lionhead. Photo: A Steckmest
Avalanche Details: Many Natural Avalanches Lionhead Area
Lionhead Range, 2023-03-13
Riders observed many natural avalanches at Lionhead. Photo: A Steckmest
Avalanche Details: Many Natural Avalanches Lionhead Area
Forecast link: GNFAC Avalanche Forecast for Mon Mar 13, 2023
Lionhead Range, 2023-03-13
Forecast link: GNFAC Avalanche Forecast for Mon Mar 13, 2023
From IG message: "3 different slides lionhead area. One was very big the run out was 20 feet tall and quarter mile long" Photo: T. Urell
Avalanche Details: 3 large avalanches at Lionhead
Forecast link: GNFAC Avalanche Forecast for Sun Mar 12, 2023
Lionhead Range, 2023-03-11
Forecast link: GNFAC Avalanche Forecast for Sun Mar 12, 2023
Frozen Cow Tag Conditions Check
Date
Activity
Snowmobiling
Heavy snow and strong winds are creating dangerous avalanche conditions. The snow is letting up and the sun will poke out this weekend, but the snowpack needs time to stabilize. If the wind continues, loading from drifting is equivalent to loading from new snow. We observed shooting cracks where snow on top of a rain crust 6-12" deep was sliding easily on steep rolls.
Steer clear of steep slopes, especially those loaded by wind drifts and avoid gullies with walls over 30 degrees. Opt instead for meadows and tree riding under 30 degrees where the snow is deep, and you'll be safe from avalanches.
Region
Island Park
Location (from list)
Centennials - Idaho
Observer Name
Dave Zinn
Hellroaring Observations
Date
My group and I spent March 5th - 8th in the Hellroaring Creek drainage on the SW side of the Centennials. We were right on the heels of the 13ish day long storm in the Island Park area. From what we gathered, the snowpack was handling the loading very well. We saw no natural avalanches. Pits dug on shady aspects were around 250cms deep and had few noticeable weak layers and no reactivity during testing. Pits on South and West aspects were about 200cms deep and had a thin pencil hardness crust (melt/freeze I believe) ranging from 115-140cms above ground. This crust had facets around it and was reactive in column tests but showed now propagation in the ECTs.
Region
Island Park
Location (from list)
Hellroaring Creek
Observer Name
Will Flynn
Many naturals and 1 human triggered slide
Date
Activity
Snowmobiling
We saw 6 natural avalanches on our ride in Lionhead. They all involved snow in the last week or two. On our exit we ran into who a group that witnessed a sledder triggering this slope. It was about 3 feet deep and was clearly wind loaded. Luckily he was not caught. When folks are triggering slides we know other slopes are also unstable. Be careful out there!
Region
Lionhead Range
Location (from list)
Airplane Bowl
Observer Name
Doug Chabot