Avalanche in Idaho

Events

91

Deaths

38

Injuries

12

Damage

$251,000

• Avalanche in Idaho, January 7, 20203 deaths · 2 injured · 1 eventOn the morning of January 7th an avalanche occurred at the Silver Mountain Ski Resort near Kellogg, Idaho. Three skiers died and two others were fully buried but were pulled alive from the snow.
• Avalanche in Idaho, February 22, 20032 deaths · 3 injured · 1 eventAfter a night of new snowfall and warming daytime temperatures, two separate avalanches occurred just an hour and a half apart and within 20 miles of each other. The first event took place around 11:30 am near Keokee Lake about 10 miles northwest of Schweitzer Ski Resort.
• Avalanche in Idaho, January 2, 20042 deaths · 2 injured · 1 eventThe Avalanche was located about 10 miles north of Fairfield and 1 mile south of the Soldier Mountain Ski Resort. The snow slide was 500 to 700 feet long.
• Avalanche in Idaho, January 3, 19982 deaths · 1 eventDuring the first week of January, dangerous avalanche conditions prevailed in the mountainous regions of central and eastern Idaho. On January 3rd one avalanche killed a snowmobiler near Island Park.
• Avalanche in Idaho, March 30, 20102 deaths · 1 eventTwo Washington state men died in an avalanche while snowmobiling about 17 miles north of McCall, Idaho. The size of the avalanche was estimated to be between 5 and 6 acres.
• Avalanche in Idaho, December 17, 20212 deaths · 1 eventAn avalanche near Driggs and Relay Ridge killed two teenage boys at around 2:45 PM on December 17th. It was in a backcountry area with one snow mobiler and one skier killed in the avalanche.
• Winter Storm and Avalanche in Idaho, January 7 to 11, 20171 death · $20,000 · 20 eventsA long dawn out atmospheric river event brought a variety of impacts to southeast Idaho including extremely heavy mountain snow, valley snow then rain on snow leading to flooding and roads covered with ice in the Snake River Plain, and many mountain avalanches.
• Flash Flooding and Winter Storm in Idaho, February 2 to 28, 19995 injured · $4.3 million · 11 eventsHeavy snow of 6-15" each day was reported across portions of north Idaho. Some of the sites included: Sandpoint, Potlatch, St. Maries, Kellogg and Winchester. The heavy snow caused hazardous driving conditions and several accidents on area roadways.
• Avalanche and Heavy Snow in Idaho, January 27 to 30, 20211 death · 12 eventsA very strong atmospheric river event brought very heavy snow to the southeast Idaho mountains and the Sun Valley region. Amounts of over 2 feet of snow were very common in the drawn out event.
• Avalanche and Heavy Snow in Idaho, January 11, 20241 death · 1 injured · 3 eventsA passing Arctic Front brought periods of heavy snow and low visibilities to the area to portions of the Eastern Washington.
• Avalanche in Idaho, March 1, 20241 death · 1 injured · 1 eventOn Friday, March 9th, at approximately 3:00pm a snowmobiler unintentionally triggered a hard slab avalanche while riding up an open, east-facing, wind-loaded slope. The avalanche started at 6,700 feet just below Gunsight Peak, in the headwaters of McCormick Creek.
• Avalanche and Heavy Snow in Idaho, December 15 to 17, 20091 death · 5 eventsA strong winter storm with a significant Pacific moisture tap moved into the Intermountain West spreading heavy, wet snow across parts of Southeast Oregon and Southwest Idaho on the 15th and 16th of December.
• Winter Storm and Avalanche in Idaho, February 19 to 20, 20211 death · 4 eventsMore snow and wind gusts closed many roads in the Upper Snake River Highlands again on the 19th and 20th of February.
• Avalanche in Idaho, March 22, 20021 death · 1 eventAn avalanche killed a snowmobiler east of Bald Peak on Targhee Pass in Fremont County. The avalanche was 200 yards wide and traveled 250 yards. The individual was buried under 25 feet of snow and was unable to be rescued .
• Avalanche in Idaho, March 12, 20021 death · 1 eventA 16 year old snowmobiler was killed in an avalanche in the Big Hole Mountains near Victor. An overhang broke free and swept him into a stand of trees.
• Avalanche in Idaho, February 28, 20041 death · 1 eventAvalanche just north of Ketchum buried and killed a snowmobiler. Determined he died from force of avalanche and injuries suffered rather than asphyxiation.
• Avalanche in Idaho, March 10, 20041 death · 1 eventA snowmobiler was killed (indirect) by an avalanche near Bonners Ferry. He was "highmarking" on a 50 degree slope.
• Avalanche in Idaho, April 2, 20061 death · 1 eventAn avalanche in Clark County claimed the life of one man. The slide took place near Lone Pine Pass just east of Signal Mountain and 7 miles northeast of Spencer. The slide was 40 yards wide and 15 feet deep.
• Avalanche in Idaho, February 17, 20071 death · 1 eventA 26 year old snowmobiler was killed in an avalanche about 15 miles west of Jackson near Palisades Peak. The victim was buried under 8 or 9 feet of snow.
• Avalanche in Idaho, January 22, 20101 death · 1 eventAn avalanche near the bottom of Fire Trail on Seattle Ridge on Bald Mountain killed a back country skier. The avalanche occurred at approximately 2:30 pm on January 22nd. The man was pronounced dead at 3:31 pm at the Wood River Medical Center due to suffocation.
• Avalanche in Idaho, December 26, 20131 death · 1 eventA snowmobiler died near Palisades Peak in Neely's Cove in Bonneville County due to an avalanche.
• Avalanche in Idaho, February 16, 20141 death · 1 eventAn avalanche occurred in Blaine County in the Smiley Creek area between Ketchum and Stanley. Four snowmobliers were buried in a meadow area when the avalanche occurred around 2 pm MST. Three of the snowmobliers survived with one fatality occurring.
• Avalanche in Idaho, February 9, 20171 death · 1 eventA snowmobiler was killed in an avalanche near McCoy Creek. The location was in extreme eastern Bonneville County right on the Wyoming border. He was buried under 3 feet of snow and died from injuries sustained in the avalanche.
• Avalanche in Idaho, February 20, 20181 death · 1 eventA snowmobiler was killed in an avalanche in the Sheep Falls area east of Palisades Rerervoir.
• Avalanche in Idaho, January 20, 20181 death · 1 eventA snowmobiler was killed by an avalanche near Island Park east of Reyes Peak just below the waterfall.

Avalanche everywhereEvery kind of event in Idaho

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.