Photos
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Bridger Range, 2019-12-22 Riders near Fairy Lake reported this slide on Saturday 12/21. Photo: @turbo_dieshall Link to Avalanche Details |
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Northern Gallatin, 2019-12-22 From IG message: "5' thick wind slab just behind little bear remote triggered riding along the ridge." @skidooin_it Link to Avalanche Details |
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Cooke City, 2019-12-22 Near Cooke City, a poor snowpack structure has been found and produced avalanches on east, south and west aspects, and makes large avalanches possible to trigger. Photo: GNFAC |
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Cooke City, 2019-12-22 Skiers saw this recent avalanche on 12/21 in Hayden Creek south of Cooke City. It is a ENE aspect at 9,800'. Photo: H. Coppolillo Link to Avalanche Details |
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Northern Madison, 2019-12-22 "At 9,400ft, in the cirque beneath the ‘Butt Crack Couloir’ on Middle Peak we dug a pit and found: HS:145 ECTP23 @35cm - this broke cleanly and popped out of the pit. It failed on a layer of buried surface hoar that still retained much of its crystal form. ECTP26 @55cm - second propagation of a faceted layer on top of a 3cm ice crust. Attached picture is from the first propagation!" Photo: Chris Kussmaul |
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Northern Gallatin, 2019-12-19 From Instagram: "Couple of small natural wind slabs around 10,200’ NE in Hyalite. Not sure exactly how recent. Played it conservative and chose to stay off a similar slope." B. Gill Link to Avalanche Details |
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Out of Advisory Area, 2019-12-19 From an email:
"Upper Elk Creek, E. aspect, 8,200 ft
Debris looked pretty fresh, Who knows, but could have been triggered either directly or remotely by bison. The disturbance to lookers left (at bench) is due to bison - they are not cryptic animals!" Photo: J. Logan
Link to Avalanche Details
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Northern Gallatin, 2019-12-18 From an email, "... our party observed several small to medium-sized releases that occured on a heavily-loaded east aspect overnight. None stepped down in the snowpack, but they certainly could have taken a person for a ride. Overalll, stability seemed to be good, with the exception of isolated wind-loaded areas." Photo S. Reinsel Link to Avalanche Details |
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Bridger Range, 2019-12-18 This avalanche crown was seen Wednesday (12/18), and probably ran a day or two prior. Photo: GNFAC Link to Avalanche Details |
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Bridger Range, 2019-12-18 This avalanche crown was seen Wednesday (12/18), and probably ran a day or two prior. Photo: GNFAC Link to Avalanche Details |
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Cooke City, 2019-12-18 Looks like it slid sometime over the weekend. Fox mountain shoulder east/se. Photo: B Zavora Link to Avalanche Details |
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Cooke City, 2019-12-18 Went up for a closer look at a recent natural avalanche in the bowl of Mt. Republic today, just lookers left of the typical Fin ski zone. An easterly aspect. Photo: B Fredlund Link to Avalanche Details |
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Northern Madison, 2019-12-16 We toured up to about 7700 feet on a NE facing aspect in the N Madison, upon entering the bottom of the meadow we had several large collapses and then one very large collapse that propagated 100+ feet uphill while on lower angle terrain below the steeper terrain Of the meadow above. We dug a pit, we got an ECTP 10. The pit was 75 cm deep, we found basal facets with an ice crust on top and About 40cm of denser 3-4 finger snow above the ice crust. Photo: A. Palombo |
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Northern Madison, 2019-12-16 From BSSP on 12/15: "For the 4th day in a row we triggered a persistent slab avalanche on the early November crust/facet (2mm) combo. This time the right side of Lenin main failed w/ a 4lb shot and ran full track well past the top of Shedhorn... The slide was approx. 150’, 5’ at its deepest at the crown and resulted in a solid size 3 avalanche." Photo: BSSP |
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Northern Madison, 2019-12-16 From BSSP on 12/15: "For the 4th day in a row we triggered a persistent slab avalanche on the early November crust/facet (2mm) combo. This time the right side of Lenin main failed w/ a 4lb shot and ran full track well past the top of Shedhorn... The slide was approx. 150’, 5’ at its deepest at the crown and resulted in a solid size 3 avalanche." Photo: BSSP |
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Northern Gallatin, 2019-12-16 From e-mail:" While on a tour in Hyalite yesterday [12/15],... On some steeper pitches near rocks bands, we observed top layer slough that moved naturally. We also observed a small crown from a day or two ago that broke between two buried rocks and only ran about 50 feet down slope." Photo: Tommy S Link to Avalanche Details |
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Cooke City, 2019-12-16 Recent avalanche up on Amphitheater Mtn., as seen 12/15 from Silver Gate. NE aspect around 9800'. Photo: B. Fredlund Link to Avalanche Details |
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Southern Madison, 2019-12-16 Riders saw these recent slides on 12/15 near Carrot Basin. Photo: A. Wheeler Link to Avalanche Details |
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Southern Madison, 2019-12-16 Riders saw these recent slides on 12/15 near Carrot Basin. Photo: A. Wheeler Link to Avalanche Details |
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Southern Madison, 2019-12-16 Riders saw these recent slides on 12/15 near Carrot Basin. Photo: A. Wheeler Link to Avalanche Details |