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The Dexes / Avalanche / 1229493

Eventdex · Avalanche

TETON & GROS VENTRE MOUNTAINS

1229493

The record

Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.

event_typeAvalanche
ncei_event_id1,229,493
episode_id198,878
begin_utc2025-01-04T18:00:00+00:00
end_utc2025-01-04T18:05:00+00:00
stateWYOMING
cz_typeZ
cz_nameTETON & GROS VENTRE MOUNTAINS
deaths_direct1
deaths_indirect0
injuries_direct1
injuries_indirect0
damage_property0.00K
damage_crops0.00K
wfo_sourcePark/Forest Service
episode_narrativeA group of four skiers unintentionally triggered an avalanche on a north-facing, sparsely treed slope above a steep-walled gully in the southern Absaroka Range, leading to one death and another person sustaining serious injury.
event_narrativeSummary from the USDA FS Bridger Teton Avalanche Center report titled Radio Tower Peak Avalanche Accident: On Saturday, January 4 2025, at approximately 11 am, a group of four skiers unintentionally triggered an avalanche on a north-facing, sparsely treed slope above a steep-walled gully approximately one mile from the parking pullout for Breccia Mountain. The avalanche was remotely triggered from below as the party attempted to cross a gully beneath a wind-loaded ridge. The triggered weak layer was formed during a cold, dry period early in the season. The weak layer was responsible for the region���s numerous human and snowmobile-triggered avalanches the week preceding this accident. This avalanche propagated 350��� uphill to a wind-loaded 38-40 degree slope, broken by cliff bands and across three distinct avalanche paths. The avalanche crown was 400��� across and ranged from one to four feet thick. The debris was a mixture of hard slab and softer surface snow, which slid 625 feet (400 vertical feet) into a terrain trap. The debris carried two members of the group, resulting in one serious injury and one fatality.
year2,025

Provenance

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Storage: spine

TETON & GROS VENTRE MOUNTAINS — Avalanche — TerraPulse