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Avalanche Forecast

Archived

Dec 25th, 2021–Dec 26th, 2021

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Glacier.

May your toes be warm, your cheeks be cold and there be a smile upon your face while enjoying powder turns this holidays season!

Weather Forecast

Time to test out the new, lightweight - high loft, puffy jacket you just got as a present from your mom, as an Arctic front pushes its way into the region. Expect mainly cloudy skies with isolated flurries, light Westerly winds and cold temperatures throughout the day. Cold temps, clear'ish skies and light winds are settling in for the week. Brrrr.

Snowpack Summary

50cm of snow recent snow is settling out on top of previously faceted surfaces. Pockets of slab exist in loaded areas. The Dec 1 crust is buried approximately 80cm-150cm, with facetting of the snow directly above and below (facetting in most prominent in shallower snowpack areas). Beneath the Dec 1 crust, the snowpack is dense and strong.

Avalanche Summary

No new avalanche activity was observed or reported since Thursday.

Artillery control on Thursday produced numerous large-very large storm slab avalanches (size 2-3.5), with some running to valley bottom.

Several skier control storm slabs up to size 1.5 on Thursday.

Confidence

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.