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Avalanche Forecast

Archived

Jan 7th, 2025–Jan 8th, 2025

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.
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.

There is some uncertainty regarding overnight snowfall amounts on Tuesday.

Expect wind slabs to become reactive to human triggering if we receive more than 5 cm by Wednesday morning.

Confidence

Moderate

Avalanche Summary

No new avalanche activity reported on Tuesday.

On Monday there was a size 1.5 wind slab avalanche in the alpine on Macdonald West Shoulder 4, likely skier triggered.

Snowpack Summary

2-10cm of new snow overnight on Tues will arrive with moderate SW wind creating new wind slab. Snowfall on Tues night will burry multiple crusts found within in the upper snowpack from recent solar inputs and a freezing rain event Saturday afternoon.  

The wind direction has been variable over the past week making buried wind slab a possibility on all aspects in the Alpine.

Overall the mid and lower snowpack is strong and well settled.

Weather Summary

A frontal system passes through our area this evening bringing light precipitation,

Tonight Flurries. 2-10cm snow. Ridge wind SW 35 km/h. Freezing level (FZL) 800m.

Wed Mainly cloudy with isolated flurries. Trace precipitation. Alpine high -6 °C. Ridge wind W 20-40. FZL 1300m.

Thurs Mainly cloudy. No precip. Alpine high -4. Ridge wind SW 15 km/h. FZL 1200m.

Fri Flurries. Accumulation 7 cm. Wind SW20-40. FZL 1000m

Terrain and Travel Advice

  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for slabs before you commit to it.
  • Be especially cautious as you transition into wind-affected terrain.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.

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.