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Archived

Avalanche Forecast

Feb 8th, 2016–Feb 9th, 2016
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
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable
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
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Glacier.

Air temperatures are forecast to rise to near or above freezing to ridgeline today and tomorrow.  Pay attention to overhead hazards such as cornice or sun exposed start zones

Weather Forecast

Mainly cloudy today, isolated snow showers ridge winds SW 20km/hr.  Warming trend,  freezing level rising to 1800m today up to 3500m tomorrow.  Sunny with cloudy periods tomorrow nil precip ridge winds SW 15km/hr.  Wet and warm Wednesday through Friday. 

Snowpack Summary

Surface is 30-40 cm settling storm snow and new wind slabs from recent strong southerly winds.  January 4 persistant weak layer is down 100cm and continues to produce sudden shears

Avalanche Summary

No new avalanches observed or reported yesterday.  Expect to see some new activity today if temperatures get as warm as forecast. 

Confidence

Avalanche Problems

Storm Slabs

recent storm snow and wind deposits settling over a layer of lower density decomposing precipitation particles
Use caution in lee areas. Recent wind loading have created wind slabs.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 3

Deep Persistent Slabs

Persistent weak layer now buried around 100cm is still failing suddenly in snowpack stability tests a may potentially result in a large avalanche if triggered
Be aware of the potential for wide propagations.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 4