Avalanche in Wyoming

Events

91

Deaths

53

Injuries

37

Damage

$15,000

• Avalanche in Wyoming, January 12, 20083 deaths · 1 eventThree men were killed near Cottonwood Lake when an avalanche enveloped them and their snowmobiles. The slide was estimated to have been one-half mile long, 400 yards wide at the bottom, and covered about 10 acres at an average depth of 10 feet in the runout zone.
• Avalanche in Wyoming, February 27, 20093 deaths · 1 eventA group of four snowmobilers triggered a mile long, 100 yard wide avalanche in the Deadhorse Creek drainage near Alpine in Lincoln County.
• Avalanche in Wyoming, May 17, 20152 deaths · 1 injured · 1 eventFour skiers were climbing the Sickle Couloir on Mount Moran in Grand Teton National Park on Sunday morning, May 17, when a shallow, wet avalanche broke from above. Three of the four skiers were swept 500 feet downhill over rock and ice.
• Avalanche in Wyoming, April 16, 20112 deaths · 1 eventTwo backcountry skiers were buried by a large avalanche shed from the north face of Nez Perce Peak the night of Saturday, April 16 as the skiers were sheltering in their tents for the night.
• Avalanche in Wyoming, March 7, 20122 deaths · 1 eventAn avalanche on Ranger Peak killed two backcountry skiers Wednesday, March 7. The skiers were found the following day after a family member reported one of them missing. The avalanche occurred at 10,500 feet and swept the skiers 3,000 vertical feet down Waterfalls Canyon.
• Avalanche in Wyoming, January 24, 20162 deaths · 1 eventA two to four feet deep, 200-foot-wide avalanche claimed the lives of two skiers while a third escaped injury by clinging to a tree. The slide occurred on Ralph's Slide in Rock Springs Canyon shortly before 1430MST.
• Avalanche and Heavy Snow in Wyoming, February 7 to 9, 20241 death · 1 injured · 3 eventsHeavy snow reported across the Snowy and Sierra Madre Ranges 7 to 9 February 2024.
• Avalanche in Wyoming, January 5, 20061 death · 1 injured · 1 eventAn avalanche broke on a 40-degree slope of Taylor Mountain and ran for one mile down 2,000 vertical feet killing one skier and injuring another.
• Avalanche in Wyoming, December 16, 20061 death · 1 injured · 1 eventAn avalanche at 9,500 foot elevation occurred near Stewart Peak around 3:00 p.m. MST. The slide sent a slab of snow 400 feet long and 300 feet wide down a hillside. Two snowmobilers were caught in the snow which accumulated to nearly 10 feet in depth.
• Avalanche in Wyoming, March 10, 20071 death · 1 injured · 1 eventOne skier was killed and another injured when an avalanche broke on the west slope of the Teton Mountains and ran for 1,500 feet. The slide occurred in Darby Canyon.
• Avalanche in Wyoming, March 17, 20221 death · 1 injured · 1 eventA group of backcountry skiers triggered an avalanche in the Game Creek drainage on the west slope of the Teton Range. A man and a woman were caught in the avalanche and buried. The two were uncovered by their companions. The man was given CPR, but succumbed to his injuries.
• Avalanche in Wyoming, January 4, 20251 death · 1 injured · 1 eventA 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.
• Avalanche in Wyoming, December 20 to 22, 20251 death · 2 eventsHeavy mountain snow and strong winds in the latter half of December led to multiple avalanches of note in western Wyoming.
• Avalanche in Wyoming, December 1, 20001 death · 1 eventNorth side of Teton Pass. Time is estimated.
• Avalanche in Wyoming, December 9, 20001 death · 1 eventOccured on south side of Teton Pass. Time was estimated.
• Avalanche in Wyoming, December 25, 20001 death · 1 eventOccured near Dead Horse Pass. Time is estimated.
• Avalanche in Wyoming, February 23, 20011 death · 1 event
• Avalanche in Wyoming, February 6, 20011 death · 1 eventOccurred at Upper Rocks Springs Bowl just out of bounds of Jackson Hole Ski Area.
• Avalanche in Wyoming, December 27, 20051 death · 1 eventAn avalanche killed a 21 year-old man who was snowmobiling near Togwotee Pass. It took Search and Rescue two days to find the man, who was buried under 12 feet of snow, due to inclement weather and additional avalanches.
• Avalanche in Wyoming, January 5, 20071 death · 1 eventAn avalanche was triggered by a skier near a cliff in Rock Springs Bowl just south of the Jackson Hole Mountain Resort. The skier jumped over the cliff to avoid the avalanche, but he suffered massive internal injuries upon impact and was killed.
• Avalanche in Wyoming, January 2, 20081 death · 1 eventAn avalanche buried 4 people on snowmobiles, and resulted in one fatality.
• Avalanche in Wyoming, December 27, 20081 death · 1 eventAn avalanche occurred within the boundaries of the Jackson Hole Mountain Resort resulting in the death of a 31-year-old male. The slide carried the victim and his uninjured companion 200 yards. The depth of the avalanche was six to eight feet and completely buried the victim.
• Avalanche in Wyoming, January 2, 20091 death · 1 eventAn ice climber was killed when an avalanche one-quarter mile across swept 2,000 feet down a mountainside and spilled over the edge of a steep slope he was climbing. His climbing partner was uninjured.
• Avalanche in Wyoming, January 6, 20101 death · 1 eventA member of the Jackson Hole Ski Area ski patrol was critically injured in a human triggered avalanche in the resort's Cheyenne Bowl. The victim succumbed to his injuries on Saturday, January 9, after spending several days in an area hospital.
• Avalanche in Wyoming, February 21, 20101 death · 1 eventAn avalanche on South Teton peak pushed a 30-year-old man off a 1500-foot cliff to his death. The man and two ski companions had earlier climbed the peak and had skied down several hundred feet below the summit when the slide triggered around 1100MST.

Avalanche everywhereEvery kind of event in Wyoming

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.