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Archived

Avalanche Forecast

Jan 7th, 2024–Jan 8th, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Duffey, South Chilcotin, South Coast Inland, Stein, Taseko.

Pay attention to accumulating snowfall - avalanche hazard will increase as the next storm brings more snow and wind.

Confidence

Moderate

Avalanche Summary

On January 6, a natural avalanche cycle to size 2.5 was observed, and storm slabs to size 2 were reactive to rider traffic, as well as sluffing in steep terrain.

A very large (size 4) avalanche was reported on Joffre shoulder and around towards Slalok; observed from a distance it is hard to determine what layer this avalanche failed.

Snowpack Summary

Strong southwest then northerly wind has impacted loose snow at upper elevations. More snow and wind is forecast starting Monday.

30-60 cm of recent and settling snow covers the Dec 30 crust (and isolated Jan 3 surface hoar), this crust is more prominent at treeline and below, and varies in thickness and strength across the forecast area. A Dec 20 crust is being tracked further west of this forecast region. Now down 80-120 cm, facets and surface hoar over a crust have been trending dormant except for a few large, suspect avalanches reported Jan 6. Snowpack depths are 80-120 cm around treeline and decrease rapidly below.

Weather Summary

Sunday Night

Cloudy with isolated flurries. Light increasing ridgetop wind. Treeline temperature -18 °C.

Monday

Cloudy with flurries, 5 cm. Southwest ridgetop increasing to strong. Treeline temperature -12 °C.

Tuesday

Snow, 10-25 cm. Strong southwest ridgetop wind. Treeline temperature -11 °C.

Wednesday

Snowfall decreasing, 5 cm. Moderate decreas9jgmsouthwest ridgetop wind. Treeline temperature -18 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Fresh wind slabs will likely form throughout the day, diligently watch for changing conditions.
  • Dial back your terrain choices if you are seeing more than 25cm of new snow.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Investigate the bond of the recent snow before committing to your line.

Avalanche Problems

Wind Slabs

As snowfall accumulates, expect a more widespread and reactive slab to form. Be especially cautious around ridges and (previously) wind-affected terrain, and in pockets with the deepest depositions.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2