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Archived

Avalanche Forecast

Mar 12th, 2022–Mar 13th, 2022
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
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: Jasper.

Low hazard means small avalanches may be triggered in isolated areas or extreme terrain. New snow amounts are increasing gradually over the next few days. This may increase the potential for loose snow sliding on a buried crust 10-20cm down.

Weather Forecast

Saturday night will be cloudy, flurries, -8C, and light winds. Sunday will have more intense flurries, potentially 7cm of snow, -4C, 1700m freezing level, and light ridge winds. Monday will bring 10cm of snow, -7C, light gusting strong Southwest winds, and freezing level 1600m. Expect scattered flurries and 4cm of snow on Tuesday.

Snowpack Summary

Sheltered areas Treeline and below hold 10-20cm of soft snow over top a strong settled mid pack. Most alpine surfaces have been sculpted by previous winds and has a cornucopia of characteristics. A temperature crust down 10-30cm is decomposing and generally below 2300m on solar aspects. A facet and depth hoar layer is at the bottom of the snowpack.

Avalanche Summary

One steep loose surface slide was noted in the Mt. Cromwell area at treeline on a due East aspect. It started as a point and gained enough mass by the bottom to be a size 2. Also a small wet loose was noted next to Curtain Call. Both likely initiated by a brief spike in solar radiation. Thursday and Friday's patrols noted no new avalanches.

Confidence

Forecast snowfall amounts are uncertain on Sunday

Avalanche Problems

Wind Slabs

Previous variable winds in the alpine has sculpted much of the terrain particularly where slopes present to the wind. Investigate any large slope before committing.

  • Use caution in lee and cross-loaded terrain near ridge crests.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Loose Dry

There was an increase in activity of this nature on due East and West aspects as the sun made a brief appearance on Saturday. They gained enough mass by the bottom to be a concern for someone in a terrain trap. Watch for sluffs while skiing.

  • Be careful of loose dry power sluffing in steep terrain.

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

Elevations: Treeline, Below Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2