A guided backcountry ski trip in the Sierra Nevada turned tragic on February 17, 2026, when an avalanche struck near Castle Peak outside Truckee, California. The slide occurred around 11:30 a.m. in the Lake Tahoe region, where a group of 15 skiers — including four professional guides — had ventured out despite difficult winter conditions. Earlier that day, the Sierra Avalanche Center had warned of high avalanche danger in backcountry areas. Severe weather made rescue operations especially challenging.

The Nevada County Sheriff’s Office confirmed that six members of the group survived. Using a satellite emergency feature on their phones, they alerted authorities, allowing rescuers to locate them despite heavy snowfall and limited visibility. Nearly 50 emergency personnel from multiple agencies traveled by snowcat and skis across steep terrain to reach the site. Survivors were told to shelter in place until help arrived, and two were later transported to a hospital for evaluation. Officials confirmed that eight people died in the avalanche, and one additional skier remains missing and is presumed deceased.

Among those identified were sisters Caroline Sekar, 45, of San Francisco, and Liz Clabaugh, 52, of Boise, who shared a lifelong love of outdoor adventure. Also killed was Kate Vitt, a radio executive and mother of two, remembered for her leadership and dedication.

Authorities are reviewing the incident as the community mourns. Avalanche experts note that mountain conditions can shift rapidly during heavy snow and wind. The tragedy has renewed calls for caution, preparation, and careful monitoring of official forecasts before entering high-risk terrain.