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Archived

Avalanche Forecast

Jan 23rd, 2014–Jan 24th, 2014
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Banff Yoho Kootenay.

The hazard is Moderate, but forecasters still have lowered confidence in the overall strength of the snowpack, especially in thin areas. SH

Weather Forecast

Expect an above freezing layer to develop Friday at upper elevations. Alpine temperatures may be close to zero until Sat. night with light Northerly winds. No precipitation is forecast for the next 2 days.

Snowpack Summary

The midpack is slowly strengthening. Sudden collapse compression results still found, failing at the base in old DH and on top of the crust in the hard range. Some moist snow in the afternoons on steep, solar aspects forming thin sun crusts overnight. Wapta Icefields snow cover reported as highly variable, ranging from 20cm-2m over the ice.

Avalanche Summary

No new avalanches observed.

Confidence

Freezing levels are uncertain on Friday

Avalanche Problems

Deep Persistent Slabs

Thin areas will have the biggest potential for triggering the basal depth hoar/crust layer. Caution is advised in steep, planar features. Avalanches will be full depth with large consequences.
Be aware of thin areas that may propogate to deeper instabilites.Watch for whumpfing, hollow sounds, and shooting cracks.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 3

Loose Wet

Warmer temperatures forecast at higher elevations could cause some loose, wet avalanches in very steep, rocky terrain. Climbers should be cognisant of this.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2