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Archived

Avalanche Forecast

Feb 14th, 2022–Feb 15th, 2022
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Yukon.

Lingering wind slabs may remain reactive to human triggers on lee features in the alpine.

Whumpfing, cracking, and hollow sounds are all signs of instability that should cause you to back off into lower angle or less wind-loaded terrain.

Confidence

Moderate - Uncertainty is due to the limited number of field observations.

Weather Forecast

MONDAY NIGHT: Increasing cloudiness / Extreme, west wind / Low of -11.

TUESDAY: Mix of sun and cloud / Strong, northwest wind / High of -5.

WEDNESDAY: Cloudy with flurries; 3-5 cm / Strong, west wind / High of -3.

THURSDAY: Snow; 5-10 cm / Strong, west wind / High of -3.

Avalanche Summary

No new avalanches were reported on Sunday. However, we have had no field observations since Saturday.

On Friday, our field team reported significant cracking on features that had recently been loaded by the wind.

 Whumpfing, cracking, and hollow sounds are all signs of instability that should cause you to back off into lower angle or less wind-loaded terrain.

Snowpack Summary

10-15 cm of recent snow has been hammered by strong southwest winds. Expect wind-affected surfaces on all but the most sheltered north aspects. 

Wind slabs are likely present on lee features at all elevations and may remain reactive to human triggers.

This overlies a hard crust that extends up to at least 1200 m on solar aspects. Below this, the mid-pack is generally well-settled and strong in most areas.

Weak facets (sugary snow) exist at the base of the snowpack, especially in more shallow snowpack areas such as the Inland areas.

Terrain and Travel

  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.

Avalanche Problems

Wind Slabs

Lingering wind slabs may remain reactive on lee features in the alpine.

Whumpfing, cracking, and hollow sounds are all signs of instability that should cause you to back off into lower angle or less wind-loaded terrain.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 1.5