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2026-01-30

Dusting of Snow in Colorado Leads to 28 Human-Triggered Avalanches in 7 Days




In the midst of The Winter That Never Came, Colorado was graced with a few inches of snow last week, after a few fast moving storms from Canada snuck around the giant dome of high pressure that has persisted across much of the Western United States. The snow brought a flurry of backcountry travelers, and with them came avalanches. The Colorado Avalanche Information Center received report of 28 human triggered avalanches between January 23 and 29.



Dry weather in Colorado and across the West for much of the last month has led to the widespread development of facets. These crystals can make for pretty good skiing when left on the surface of the snowpack, sometimes called “recycled pow,” but once buried, they can lead to major avalanche problems. A record low snow year for many areas has left the backcountry skiing community hungry for any sort of fresh snow. Last week saw anywhere from a couple of inches in the Front Range and on Vail Pass, to 7 or 8 inches throughout parts of the San Juans. Though these loadings were not especially large in the grand scheme of things, the new snow, shaped by the winds in many places, was enough to cause human-triggered avalanches.



Many of the reports filed with the Colorado Avalanche Information Center documented relatively small sized wind slabs. A few reports indicated remote triggers, or avalanches that are triggered by people some distance away from the starting zone, a classic sign of participation of weak persistent crystals like facets. These small sized avalanches could be hinting at much larger problems on the way with the next snowfall.



Avalanche accidents can be more common in the early season, when people are anxious to start skiing and excited by early snowstorms. Similarly, snowstorms after long droughts can find skiers with their guard down, with so many days of “Low” danger and safe passage through steep terrain normally not accessible in January. Adopting a Strategic Mindset, described by Roger Atkins, can help bring awareness to subtle changes in conditions. For example, a coming storm or recent snowfall might help a group settle on the “Stepping Back” mindset, and adjust their plans to avoid terrain they might have picked the day or the week before.

Colorado could be on track for another set of storms in this next week and a half. The modest amount of snow last week that led to a flurry of human triggered avalanches serves as a good reminder that only a little bit of snow is needed to make a big problem, and that the avalanche doesn’t care how many days you have missed this season or what line skied just fine last week.



The post Dusting of Snow in Colorado Leads to 28 Human-Triggered Avalanches in 7 Days appeared first on SnowBrains.

Ссылка на источник: https://snowbrains.com/dusting-of-snow-in-colorado-leads-to-28-human-triggered-avalanches-in-7-days/


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