Mount St. Helens is seen from the Hummocks Trail, on May 18, 2020
© Ted S. WarrenMount St. Helens is seen from the Hummocks Trail, on May 18, 2020
A snowboarder was killed Saturday in an avalanche at the summit of Mount St. Helens, the Northwest Avalanche Center said in a preliminary report.

Standing near the mountain peak, the snowboarder triggered the avalanche on a cornice — an overhang of snow that can form on steep alpine slopes — and fell to his death.

"Our deepest condolences to the family, friends, and community," the avalanche center wrote in a post on its website.

Large cornices are more likely to fail during warmer weather, the agency said. According to the website, moderate avalanche danger was forecast this weekend in mountains throughout Washington.

The avalanche center will work with the Skamania County Sheriff's Office and search and rescue to compile a full report.