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Archived

Avalanche Forecast

Feb 9th, 2013–Feb 10th, 2013
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
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
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

Regions: Jasper.

Public reports indicate some good skiing can be found where recent snow is sitting on the previous hardslab in sheltered locations in the alpine.

Weather Forecast

No significant precipitation is expected in the next 3 days. Temps expected to be mild and skies partly cloudy.  Freezing levels to remain below 1300m.

Snowpack Summary

Hard windslab is bridging the weak basal facets above treeline.  Below treeline the mid-pack is weak and shallow. Scattered flurries over the past 48 hours have left a dusting of new snow in the Icefield area and up to 10cm in the Maligne area.

Avalanche Summary

No avalanches were observed on a road patrol of the Icefields Parkway and Maligne Valley.

Confidence

Due to the number of field observations

Avalanche Problems

Wind Slabs

Recent snowfall amounts vary depending on location. Reports from Shangri-La indicate as much as 10cm of new snow.  This new snow  is forming wind slabs that are sitting on the previous widespread hardslab and may be sensitive to light triggers.
Be careful with wind loaded pockets while approaching and climbing ice routes.Be cautious as you transition into wind affected terrain.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and edges of these slabs.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 1 - 3