Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Jan 28th, 2013–Jan 29th, 2013
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
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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

Regions: Kootenay Boundary.

Avalanche danger may be CONSIDERABLE in the Alpine in areas with highest amounts of recent snow, such as Kootenay Pass.

Confidence

Fair - Due to variable snowpack conditions

Weather Forecast

Monday night: Strong NW winds. Alpine temperature near -4. Very light snow.Tuesday: Light N winds. Alpine temperature near -12. Light snow.Wednesday: Strong NW winds. Alpine temperature near -8. Light snow.Thursday: Light W winds. Alpine temperature near -6. Light snow.

Avalanche Summary

Loose dry avalanches and soft slabs to size 1.5 were triggered naturally and by skiers on Sunday. Explosives triggered several size 1-2 slabs on Monday, failing on a buried crust down 20-30 cm.

Snowpack Summary

Around 15-35 cm snow overlies various old surfaces including surface hoar, facets, hard slabs and crusts. The wind has created soft slabs on lee slopes. As incremental snowfalls build up, a cohesive storm slab is developing. Deeper in the pack (about 50-60cm down), a weak interface exhibits mainly hard to no results in snowpack tests, with isolated moderate, sudden results.

Avalanche Problems

Storm Slabs

In areas with around 30 cm recent snow, a storm slab is reactive. In other areas, a storm slab is slowly building up. Winds have shifted snow into soft slabs on lee slopes as well.
Be cautious as you transition into wind affected terrain.>Use ridges or ribs to avoid pockets of wind loaded snow.>Be cautious of sluffing in steep terrain.>

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 4