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Avalanche Forecast

Archived

Feb 14th, 2025–Feb 15th, 2025

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

Regions

Glacier.

Recent cold temps have facetted/weakened the upper snowpacks bond to the buried suncrust down ~30cm(Jan 30th layer).

This problem can best be managed by avoiding steep open solar slopes, especially if the surface snow has been stiffened by the wind.

Confidence

High

Avalanche Summary

We have observed small (up to size 1) dry loose natural and rider triggered avalanches in steep unsupported terrain this week.

Field teams and MIN reports have observed some whumping and cracking in exposed areas.

Neighbouring operations, particularly to the west, are still reporting rider & remote triggered avalanches on the Jan 30th layer.

Snowpack Summary

Areas sheltered from the wind are faceted with good quality skiing.

A weak layer of surface hoar, facets and/or suncrust (Jan 30th drought layer) is 20-50cm down from the snow surface. Recently, this layer has been showing signs of reactivity in sun exposed terrain, where facets sit on a suncrust.

The Jan 7th layer has not been reactive for a time, but remains down 50-80cm, and is comprised of decomposed surface hoar in sheltered areas and/or a thin crust on steep S aspects.

Weather Summary

Slightly warmer weather is forecast through the weekend, with some light flurries Sunday.

Tonight Clear periods. Alpine low -16°C. Ridge winds light from the West.

Saturday Sunny periods. Alpine high -13°C. Light SW wind.

Sunday Cloudy with flurries (up to 12cm). Alpine low -12°C, high -9°C. Light S Wind.

Monday Mix of sun and cloud. Alpine low -14 °C, high -11°C. Light SE Wind.

Terrain and Travel Advice

  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.
  • Be careful with sluffing in steep terrain, especially above cliffs and terrain traps.

Problems

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.