Archived

Avalanche Forecast

Feb 7th, 2012–Feb 8th, 2012

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

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: Kananaskis.

Sun crusts up to 3cm thick have formed on solar aspects. Avalanche hazard will rise when these crusts break down with increased temperatures and solar radiation later in the day. Plan your trip accordingly. (JM)

Confidence

-1 - -1

Weather Forecast

Avalanche Summary

One size 2.0 slab from steep terrain on SE asp at 2500m on the Goat Range, looked like it failed in the basal facets.

Snowpack Summary

SC up to 3cm thick on solar asp, beginning to break down late morning only on slopes directly facing the sun. SH and surface facetting.

Avalanche Problems

Loose Wet

Loose wet slides on steeper solar aspects related to daytime warming and radiation. Sun crusts were breaking down by late in the morning on Tuesday. Timing is everything.

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

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 3

Wind Slabs

Wind slabs from the various wind events earlier this season are easily found on N and E aspects. Steeper unsupported terrain features are still good places to use caution.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 5

Deep Persistent Slabs

Weak basal layers persist and if triggered from a weak area could cause a large destructive avalanche involving the entire winters snowpack. A recent size 2.0 avalanche associated with this layer indicates that failures are still possible.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 3 - 6