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Avalanche Forecast

Archived

Nov 12th, 2023–Nov 17th, 2023

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Early Season
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Early Season
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Early Season
Below Treeline
Below Threshold.

Regions

Glacier.

Avalanches are possible in isolated wind-loaded areas in the Alpine. Early season conditions rule supreme at the moment, with many rocks, stumps, and sleepy marmots lurking just below the snow surface.

Options for good turns are limited at the moment!

Confidence

Low

Avalanche Summary

Natural and human-triggered storm snow avalanches have been observed in the Alpine and upper Treeline elevations. Notably on Nov 12, a sz 2.5 slab avalanche, ~1m deep, was triggered from 100m away while a group approached the final headwall to Video Peak.

Tuesday

Natural and human-triggered storm snow avalanches have been observed in the Alpine and upper Treeline elevations. Notably on Nov 12, a sz 2.5 slab avalanche, ~1m deep, was triggered from 100m away while a group approached the final headwall to Video Peak.

Wednesday

Natural and human-triggered storm snow avalanches have been observed in the Alpine and upper Treeline elevations. Notably on Nov 12, a sz 2.5 slab avalanche, ~1m deep, was triggered from 100m away while a group approached the final headwall to Video Peak.

Snowpack Summary

Early season snow depths range from 40-60cm at Treeline to ~80-100cm in the Alpine. A supportive crust below 1750m allows travelers to stay near the surface. Above that elevation, expect to sink further into the young snowpack, especially on rocky slopes where sugary snow is found.

Tuesday

Early season snow depths range from 40-60cm at Treeline to ~80-100cm in the Alpine. A supportive crust below 1750m allows travelers to stay near the surface. Above that elevation, expect to sink further into the young snowpack, especially on rocky slopes where sugary snow is found.

Wednesday

Early season snow depths range from 40-60cm at Treeline to ~80-100cm in the Alpine. A supportive crust below 1750m allows travelers to stay near the surface. Above that elevation, expect to sink further into the young snowpack, especially on rocky slopes where sugary snow is found.

Weather Summary

Detailed weather forecasts can be found in the Mountain Weather Forecast.

Tuesday

Detailed weather forecasts can be found in the Mountain Weather Forecast.

Wednesday

Detailed weather forecasts can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.