Archived

Avalanche Forecast

Jan 17th, 2012–Jan 18th, 2012

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

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

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: Little Yoho.

Cool temperatures will persist until Friday, but the weekend should bring more seasonable weather. Some light snowfall will begin on Friday and into the weekend. The avalanche hazard is not expected to change much over the next few days.

Avalanche Problems

Wind Slabs

Strong valley bottom winds from the east and moderate south westerly winds in the alpine have created soft slabs in immediate lee terrain. Cool temps should break these slabs down, but for the short term be wary of lee terrain in open areas.

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

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 2

Deep Persistent Slabs

A well settled midpack overrides a weaker facetted base. This weak base is found most places except the west side of the divide. Beware of steep shallow snowpack areas (where the likelihood of triggering this basal layer is highest).

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3