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Avalanche Forecast

Archived

Jan 15th, 2022–Jan 16th, 2022

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

Regions

Glacier.

The incoming storm is set to be intense!

If it arrives earlier than forecast tomorrow, be ready to change your objective.

Weather Forecast

Expect the next storm to start picking up steam Sunday evening.

Tonight: Trace of snow. Freezing level 900m. Wind W- 20 gusting to 45 km/h

Sun: Flurries, 10cm. Fzl 1200m. Wind SW-25 km/h

Mon: Snow, 30cm. Fzl 1600m. Wind SW 25 gusting to 55 km/h

Snowpack Summary

Storm slabs have formed with ~40cm of storm snow, warm temps and mod/strong SW winds. These have buried a Jan11 surface hoar layer observed up to 4-6mm, found at treeline and below. The Dec 1 crust is now buried up to 2m deep and remains dormant.

Avalanche Summary

No new avalanches were observed in the highway corridor today.

Yesterday, a size 3.0 avalanche released naturally from a steep solar path at treeline (Cougar Corner 6). The sun also triggered numerous small (up to size 1.5) loose dry avalanches from steep, rocky terrain features.

Confidence

Timing, track, or intensity of incoming weather system is uncertain

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.