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Archived

Avalanche Forecast

Feb 22nd, 2022–Feb 23rd, 2022
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
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

Regions: Little Yoho.

Several reports of skier triggered wind slabs in last day. Exercise caution as you transition into open terrain at tree-line and above.

Weather Forecast

Cold weather will continue on Wednesday and then a warming trend begins on Thursday. For Wednesday valley bottom temps rising to -10 during the day and ridge-top temps rising to -15. Winds will be light from the north-west. Little to no snow forecast through end of week.

Snowpack Summary

Recent storm snow has been redistributed by winds to create widespread wind effect, wind slabs and scoured surfaces in alpine a tree-line elevations. The Jan 30th surface hoar/sun crust layer is variable in distribution, is 40-75 cm down and is producing hard sudden planar results in snowpack tests.

Avalanche Summary

Report of a skier triggered size 1.5 wind slab near Yoho Pass in the alpine. Another report of a skier triggered avalanche (size 1.5) near Vermillion Crossing at treeline. Sunshine skil hill reported several size 1 wind slabs in the alpine. Very little recent natural activity observed.

Confidence

Avalanche Problems

Wind Slabs

Wind slabs that exist from redistribution of recent storm snow still exist in the alpine and some tree line locations. The wind slabs are sitting on a variety of surfaces including hard slabs, SH and facets.

  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
  • Watch for surface cracking and stiffer surface layers of snow.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2