9 hours ago · What to Know About Avalanches, What Causes Them and How to Stay Safe An avalanche — a mass of snow moving down a slope — happens most often in the wilderness. …

Avalanches can be triggered spontaneously, by factors such as increased precipitation or snowpack weakening, or by external means such as humans, other animals, and earthquakes. Primarily …

9 hours ago · Avalanches, masses of snow moving down a slope, happen most often in the wilderness. The National Avalanche Center says watching for forecasts, bringing the proper gear and getting …

Jan 19, 2026 · There are various kinds of avalanches, including rock avalanches (which consist of large segments of shattered rock), ice avalanches (which typically occur in the vicinity of a glacier), and …

11 hours ago · A final missing skier was also presumed dead, the authorities said. Six survivors were rescued. The avalanche is the deadliest in modern California history.

4 hours ago · An avalanche near California's Lake Tahoe has become the fourth deadliest in U.S. history. Here's what we know about the six deadliest slides.

17 hours ago · Nathalie Vriend, a skier and physicist at the University of Colorado Boulder who studies avalanches, explains what happens in an avalanche and techniques for surviving one. What causes …

Want to travel safely in avalanche terrain? Get the training here. Gain vital skills to manage risk in avalanche terrain. Take a class from avalanche educators who follow American Avalanche …

Jul 19, 2019 · Humans trigger 90 percent of avalanche disasters, with as many as 40 deaths in North America each year. Most are climbers, skiers, and snowmobilers. Learning about avalanches, and the...

In the mountains of the western United States, there are about 100,000 avalanches each year. Avalanches kill more than 150 people worldwide each year. Most are snowmobilers, skiers, and …