A guided backcountry ski outing in the Sierra Nevada ended in tragedy on February 17, 2026, when an avalanche struck near Castle Peak outside Truckee, California. Authorities said the slide occurred around 11:30 a.m. in the Lake Tahoe region, where a group of 15 skiers, including four professional guides, had set out despite challenging winter conditions. The Sierra Avalanche Center had issued a warning earlier that day, noting a high risk of avalanches in backcountry areas. The incident prompted a large-scale emergency response as severe weather complicated rescue efforts.

According to the Nevada County Sheriff’s Office, six members of the group survived. They used a satellite emergency feature on their mobile phones to alert authorities, enabling responders to locate them despite limited visibility and heavy snowfall. Nearly 50 trained personnel from multiple agencies traveled by snowcat and skis across steep, unstable terrain to reach the area. The survivors were instructed to shelter in place until help arrived, and two were transported to a hospital for evaluation. Recovery teams later confirmed that eight individuals had lost their lives, and one additional skier remains missing and is presumed deceased.

Officials have identified several of the victims, including sisters Caroline Sekar, 45, of San Francisco, and Liz Clabaugh, 52, of Boise. Their brother shared that the siblings had long cherished outdoor adventures together and maintained close friendships within their skiing community. Also among those who died was Kate Vitt, a radio executive and mother of two. Vitt held leadership roles in media and technology companies and was recognized by colleagues for her professional dedication and collaborative spirit. Local school officials confirmed that her children are safe and receiving support from family members.

Authorities continue to review the circumstances surrounding the avalanche as the community reflects on the lives lost. Avalanche safety experts frequently emphasize that mountain conditions can change rapidly, particularly during periods of heavy snowfall and strong winds. The tragedy has renewed conversations about backcountry awareness, preparedness, and monitoring official forecasts before venturing into high-risk terrain. While the mountains remain a place of recreation and natural beauty, this event serves as a solemn reminder of the importance of caution and respect for changing winter conditions.