Colorado snowpack perilous |

Colorado snowpack perilous

Death near Aspen, inbounds slide show avalanche dangers

Bob Berwin/Summit Daily
A pair of ski tracks are flanked by two human-triggered avalanches on a backcountry pitch called the Ironing Board between Loveland Pass and Arapahoe Basin Ski Area last year. The avalanche on the right is on a run known as Dave's Wave. No skiers died, but one dog was lost in the slide. Forecasters say conditions once again are ripe for big avalanches.
Courtesy Photo

— The season’s first avalanche death near Aspen and an inbounds slide at Vail, both last week, are clear signs that Colorado’s snowpack is touchy and prone to trigger releases that could run deep and wide.

Avalanche centers across the region, including the normally stable Pacific Northwest, are warning about tricky early season conditions.

The slide activity across the region should be a warning sign for backcountry travelers, U.S. Forest Service rangers said.

Avalanche experts are urging people to be very cautious, to choose routes carefully and to avoid slide-prone terrain.

Blasting at Vail Pass on Wednesday triggered numerous slides, with most of them running to the ground, the avalanche center reported in its afternoon update.

A natural avalanche was spotted in the Peak 6 bowl between Frisco and Breckenridge, and the Colorado Avalanche Information Center reported a slab avalanche running on a relatively shallow-angled, 22-degree slope near Aspen.

The avalanche hazard across the entire Summit zone is rated as considerable, meaning that human-triggered slides are probable.

More snow and wind are in the forecast, so the danger probably won’t subside anytime soon.


“It’s an obvious heads-up,” said Dillon District snow ranger Joe Foreman, referring to the recent activity inside and outside ski-area boundaries.

The Forest Service has held informal talks with ski-area officials to discuss avalanche safety protocols, he said.

The biggest danger for backcountry travelers could be a false sense of security. Hasty tests and shallow snow pits may suggest a superficially stable snowpack.

But several weak layers deep down are troubling to avalanche forecasters.

“It seems like, statewide, there’s deep instability,” said Simon Trautman, a forecaster with the Colorado Avalanche Information Center.

Trautman said that snow layers in one test didn’t just crumble or slump – they released with audible pops, indicating tension in the snow layers, just waiting for a trigger.

That trigger could be a human cutting across the point where a windslab is anchored to the surrounding snow or landing a jump from a cornice or rock.

“Now is probably not a good time to be a human cliff-hucking bomb in steep, open terrain,” forecaster Scott Toepfer said in his Wednesday Web bulletin.

Support Local Journalism

Support Local Journalism

Readers around Steamboat and Routt County make the Steamboat Pilot & Today’s work possible. Your financial contribution supports our efforts to deliver quality, locally relevant journalism.

Now more than ever, your support is critical to help us keep our community informed about the evolving coronavirus pandemic and the impact it is having locally. Every contribution, however large or small, will make a difference.

Each donation will be used exclusively for the development and creation of increased news coverage.