Avalanche in Donner Summit Area

Strong winds from SW, wind affect was not obvious on this sheltered terrain in the trees. Temperature was slightly warmer than the previous days, and following several days of clear skies after the significant snowfall. No obvious cornice was seen in the gully. Avalanche triggered with snowboarder turn. Other skier/snowboarder tracks were visible on slope prior. Avalanche was swift and deep enough to carry/bury a human, but luckily the rider noticed the moving snow and was able to traverse out of the slide path.