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Archived

Avalanche Forecast

Mar 28th, 2021–Mar 29th, 2021
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
2: Moderate
The avalanche danger rating below treeline will be moderate
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
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

Regions: Kananaskis.

A significant storm could bring 15 to 25cm of fresh snow with strong NW winds. Snowfall amounts are uncertain. Keep an eye on localized conditions. Some parts of the region could tip into the HIGH avalanche danger rating.

Confidence

Moderate -

Weather Forecast

Between 15 and 25cm of new snow is expected by Monday evening. Temperatures will dip to near -20 in the morning before warming to -12. Winds will shift to the NW and be in the strong range.

Avalanche Summary

Nothing new observed today, but visibility was very limited.

Snowpack Summary

Only a few cm's had fallen by the time forecasters left the field Sunday at midday, but it was snowing hard. The bond at this new interface so far appears good, but wind slab formation was observed in open areas at Treeline. These slabs were already up to 20cm thick and some cracking was observed. Monday could see 15 to 25cm more snow with strong NW winds. If this comes true, expect to find widespread wind slabs through the terrain.

Terrain and Travel

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Closely monitor how the new snow is bonding to the crust.
  • Avoid lee and cross-loaded terrain.

Avalanche Problems

Wind Slabs

New snow and strong winds are forming widespread wind slabs in Alpine and Treeline terrain. These will be primed for skier triggering on Monday.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely - Very Likely

Expected Size: 1.5 - 2.5