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Deadliest California Avalanche Kills Eight Near Lake Tahoe on Guided Trip

Deadliest California Avalanche Kills Eight Near Lake Tahoe on Guided Trip
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Eight backcountry skiers were confirmed dead and one remained missing after a massive avalanche struck a guided group near Lake Tahoe on Tuesday, in what officials called the deadliest avalanche in modern California history nytimes +1. Six other members of the 15-person party were rescued after being stranded for hours in brutal storm conditions north of Donner Summit yahoo +1.

How a Guided Hut Trip Turned Catastrophic

The slide hit late Tuesday morning near Frog Lake, in the Castle Peak backcountry about 10 miles northwest of Lake Tahoe, as a group of four guides and 11 clients exited a three‑day hut trip and traveled through steep, north‑facing terrain around 8,000 feet nytimes +2. A 911 call reporting multiple people buried came in around 11:30 a.m. Pacific time, triggering a large, multi‑agency response that had to thread its way through closed highways and whiteout conditions yahoo +1.

Rescuers on skis and snowcats reached the survivors roughly six hours later, guiding them to safety after contact via emergency beacons and satellite messaging from iPhones nytimes +1. Authorities said eight bodies were located in the debris field, described as roughly the size of a football field and filled with snow, ice, rock and timber; one skier remained missing and was presumed dead as the operation shifted from rescue to recovery on Wednesday nytimes +2.

Advance Warnings and Questions Over Risk Decisions

The tragedy unfolded despite explicit avalanche alerts for the region. The Sierra Avalanche Center and National Weather Service had issued a backcountry Avalanche Warning early Tuesday, elevating danger to “High” and cautioning that natural slides were likely and human‑triggered avalanches “very likely” in the Greater Lake Tahoe area kcra +1. Nearly three feet of new snow had fallen near Donner Summit in 48 hours, on top of older weak layers and with ridge winds forecast above 100 mph—conditions forecasters said created a volatile snowpack nytimes +1.

Scrutiny quickly focused on why the commercial trip ran amid those warnings. The outing was organized by Blackbird Mountain Guides, which days earlier had posted online about a troubling weak layer and urged skiers to “use extra caution this week” nypost. Nevada County Sheriff Shannan Moon said investigators were speaking with the company about its decisions, while industry voices argued that even expert teams must make judgment calls in rapidly changing mountain conditions nytimes +1. “The backcountry, it’s beautiful… To Mother Nature, it doesn’t seem to matter,” Moon said, emphasizing the thin margin for error nytimes.

The Bigger Picture

The Castle Peak disaster surpassed the 1982 Alpine Meadows slide as California’s deadliest recorded avalanche and added to a growing list of backcountry fatalities in the western U.S. washingtonpost +1. With more heavy snow and elevated avalanche danger forecast into Thursday, recovery teams were forced to move cautiously to avoid further loss of life among rescuers nytimes +1. The incident was likely to intensify debate over commercial guiding standards, public understanding of avalanche forecasts and how to balance a booming appetite for backcountry adventure against the hard limits imposed by an unstable mountain snowpack.