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Avalanche Forecast

Archived

Dec 30th, 2024–Dec 31st, 2024

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

Regions

Glacier.

Recent snowfall has settled significantly but loose dry avalanches remain a concern in steep terrain.

Be on the lookout for pockets of buried wind slab near ridgetop in the alpine and open areas at treeline.

Confidence

No Rating

Avalanche Summary

Natural avalanche activity has slowed down.

Small loose dry avalanches up to size one reported by public in steep terrain on Monday.

On Sunday the sun poked out today and triggered a loose dry cycle up to size 2 from steep, south-facing features. Falling tree bombs were also prolific!

There was a size 2 skier triggered wind slab below the Asulkan hut on Thursday afternoon. The slab was 30-50cms deep and 40m wide.

Snowpack Summary

Over 60cm of new snow has fallen over the past week. This new snow arrived with periods of moderate SW wind which created pockets of soft slabs in wind prone areas.

Overall, the snowpack is strong with a well consolidated mid-pack. A notable layer is down 90-120cm. This interface has been dormant for weeks, but consists of surface hoar in sheltered locations, and a sun crust on solar aspects. The snowpack's base is comprised of several early-season rain crusts

Weather Summary

Stable weather with cloudy skies & cool temps for the next few days.

Tonight Mainly cloudy. Trace precipitation. Freezing level (FZL) valley bottom. Light W wind

Tues Cloudy with isolated flurries. Trace precip. Alpine high -10. Ridge wind SW 10-20km/h. FZL 700m.

Wed Mainly cloudy with isolated flurries. Trace precip. Ridge wind SW 10-20. FZL 900m.

Thurs Sun & cloud with isolated flurries. Trace precip. SW wind.

Terrain and Travel Advice

  • Loose avalanches may start small, but they can grow and push you into dangerous terrain.
  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Be especially cautious as you transition into wind-affected terrain.

Problems

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.

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.