Archived

Avalanche Forecast

Jan 24th, 2016–Jan 25th, 2016

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

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

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

Regions: Little Yoho.

The natural cycle from the last two days is tapering off. However, remain vigilant in your terrain and route choices.

Weather Forecast

Expect light cloud cover and temps between -2 and -8 with no precip until Tues, at which time an increase in wind from the west with rising temperatures will become inputs that raise the danger rating.

Snowpack Summary

15-25cm of storm snow sit on top of the Jan 4th layer. Wind-slabs as thick as 60cm can be found in high elevation lee areas. Below the Jan 4th layer there is weak faceted snow in the upper snowpack and while the mid and lower pack are supportive in thick areas, thin areas are faceted out completely.

Avalanche Summary

While no new avalanches were observed or reported today, expect to see evidence of the avalanche cycle from the last 2 days.

Confidence

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

Avalanche Problems

Wind Slabs

Many ridgecrest features have been loaded by S and SW winds with the recent storm and new cornice growth is evident.

Avoid lee and cross-loaded terrain near ridge crests.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Loose Dry

The new surface snow and underlying sugary facets continue to produce impressive sluff avalanches that run powerfully in steep terrain. Avoid large or confined terrain features where these events can gather mass and speed.

Good group management is essential to manage current conditions safely.
On steep slopes, pull over periodically or cut into a new line to manage sluffing.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 2