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Archived

Avalanche Forecast

Jan 5th, 2017–Jan 6th, 2017
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Little Yoho.

Extra caution for ice climbers on Mt Stephen. There have been reports of wind slabs on the approaches to these climbs.

Weather Forecast

Cold weather with flurries is forecast.

Snowpack Summary

The storm snow from last week has settled and tops a 100-150 cm snowpack at tree line. In areas with a thinner snowpack the mid pack facets exist and are quite weak. In these areas the main issue is wind slabs forming a cohesive slab over the facets with potential for larger propagations. Thicker snowpack areas have few weaknesses in the snowpack.

Avalanche Summary

No natural activity was reported or observed in Little Yoho today.

Confidence

Avalanche Problems

Wind Slabs

Wind slabs exist in alpine and some treeline locations. Watch for these wind slabs as you transition into alpine terrain.

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

In areas with less than 150cm of snow the weak mid pack facets from early December remain. This is a concern wherever a cohesive slab of recent snow sits on top of this weakness. Wind loaded areas are the primary concern.

  • Watch for whumpfing, hollow sounds, and shooting cracks.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3