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Avalanche Forecast

Archived

Nov 19th, 2024–Nov 20th, 2024

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, 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.

Regions

Glacier.

Be aware that stubborn wind slabs are present in the Alpine and in open Treeline features.

With limited early season options to ride, overcrowding is an issue. Avoid putting yourself below other groups, and if you are above a party, communicate with them and avoid dumping an avalanche on top of them.

Confidence

No Rating

Avalanche Summary

Avalanche activity has decreased over the last 36hrs, with no new avalanche activity observed in the highway corridor.

A few dry/loose avalanches to sz 1-1.5 were noted from steep N-facing aspects on Cheops.

Snowpack Summary

50cms of snow fell over the weekend. On solar aspects, this new snow sits on a rain crust up to 2300m and a suncrust at higher elevations. Wind redistribution at Alpine/Treeline elevations has created a soft slab on open slopes and lee features. A thick crust can be found 20-30cm off of the ground. Below Treeline, the snowpack tapers to 40cms or less, making ski outs treacherous! Expect glaciers to have poor coverage and thin bridging.

Weather Summary

Small storm pulses will move through the Pass Wed and Fri, with a gradual warming trend into the weekend.

Tues Night: Cloudy, Alp low -11*C, light SE winds.

Wed: Flurries, 5-10cm, Alp high -6*C, light/gusting mod SE winds, freezing level (FZL) 1200m

Thurs: Cloudy with sunny periods, trace snow, Alp high -6*C, light SE winds, 1300m FZL

Fri: Flurries, 10-15cm, Alp high -3*C, light E winds, 1400m FZL

Terrain and Travel Advice

  • Be alert to conditions that change with elevation, aspect, and exposure to wind.

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.