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Archived

Avalanche Forecast

Apr 9th, 2022–Apr 10th, 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
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: Kootenay Boundary.

Check for pockets of wind slab around steep and high-consequence features.

Confidence

Moderate -

Weather Forecast

Saturday night: Mostly cloudy with isolated flurries, trace to 5 cm. Light west wind. Cold overnight temperatures, ridgetop low -10 C.

Sunday: Bands of convective moisture producing localized flurries up to 10 cm. Light northwest wind. Daytime freezing levels reaching 1200 m and ridgetop high -2 C.

Monday: Mostly cloudy with sunny breaks. Moderate east wind. Ridgetop high -2 C.

Tuesday: Cloudy with isolated flurries. Moderate east wind. Ridgetop high -2 C.

Avalanche Summary

Rapid warming triggered several wet loose and wet slab avalanches to size 1.5 around the region Wednesday through Friday. The snowpack has since cooled and avalanche activity is unlikely, but re-frozen debris could be a real travel hazard.

Snowpack Summary

A dusting of flurries has covered a crust on all aspects and elevations. Wind has redistributed loose snow into gullies and depressions with pocket wind slabs below steep, open features.

Multiple crusts exist in the upper snowpack. The mid and lower snowpack are well settled.

Terrain and Travel

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

Avalanche Problems

Wind Slabs

Fresh snow will not bond well to the old surface. Check for reactive slabs around steep and high-consequence slopes.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 1.5