Archived

Avalanche Forecast

Feb 15th, 2013–Feb 16th, 2013

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

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

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

1: Low

The avalanche danger rating below treeline will be low

Regions: Banff Yoho Kootenay.

The forecasted Saturday storm may create some reverse loaded windslab conditions. Recent storm snow west of the divide has created some new fresh slabs to watch out for.

Weather Forecast

A frontal system riding over the ridge and coming in upslope may bring in about 10cm of new snow. Temps will still be moderate and the winds will be gusting to the strong range from the NE.

Snowpack Summary

Lots of new snow being moved around by north westerly winds. Ripe new cornices. Thin fresh wind slabs. Facetted mid pack in shallow areas.

Avalanche Summary

Some new cornice fall and thin wind slabs out of very steep terrain. nothing larger than a small size 2.

Confidence

Intensity of incoming weather systems is uncertain on Saturday

Avalanche Problems

Cornices

Stay well to the windward side of corniced ridges.Enter your line well below ridge crests to avoid wind loaded pillows.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 3

Wind Slabs

The recent snow may now be hiding windslabs that were easily visible before the snow fell.Use caution in lee areas in the alpine. Recent wind loading have created wind slabs.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2