Archived

Avalanche Forecast

Feb 20th, 2012–Feb 21st, 2012

Alpine

1: Low

The avalanche danger rating in the alpine will be low

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

1: Low

The avalanche danger rating in the alpine will be low

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

1: Low

The avalanche danger rating in the alpine will be low

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: Jasper.

Sun crusts can be expected on solar aspects of 20 degrees or more. They are still thin and breakable in many locations.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable on Wednesday

Avalanche Problems

Deep Persistent Slabs

Conditions are generally stable but be cognisant of slopes threatened by large triggers such as overhead cornices on steep unsupported alpine features.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood: Unlikely

Expected Size: 2 - 4

Wind Slabs

10-20cm slabs can be expected in steep isolated features such as wind loaded ridge top terrain. Solar warming may trigger these slides from rocky terrain.

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Loose Dry

A surface hoar layer is buried 2-10 cm's. Flurries and light-moderate winds are forecast now until Wednesday which will incrementally bury it deeper. The danger rating will increase once critical load achieved. Monitor this situation as it develops.

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

Elevations: All elevations.

Likelihood: Unlikely

Expected Size: 1 - 2