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Archived

Avalanche Forecast

Apr 3rd, 2022–Apr 4th, 2022
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
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
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: Kootenay Boundary.

Keep an eye on snow accumulation and be prepared to dial back your terrain selection throughout the day. New storm slabs will increase in size and sensitivity to triggering.

Confidence

Low - Uncertainty is due to the track & intensity of the incoming weather system.

Weather Forecast

Sunday night: Stormy with 5 to 10 cm of new snow expected. Moderate south winds and freezing levels falling to 1400 m.

MONDAY: Stormy with up to 30 cm of new snow expected. Moderate to strong southwest winds and freezing levels rising to 1500 m.

TUESDAY: Mostly cloudy with light flurries bringing around 5 cm of new snow. Light to moderate west wind and freezing level around 1500 m.

Wednesday: Sunny with no new snow expected. Light westerly wind and freezing levels rising to 1800 m.

Avalanche Summary

On Saturday ski cutting produced a few size one wind slab avalanches on east aspects at treeline. 

Snowpack Summary

New wind and storm slabs will likely form throughout the day on Monday. A crust exists on all aspects to around 2500 m. This crust will likely become moist at lower elevations as the freezing level rises.

At 40 to 70 cm below the snow surface a sun crust exists on solar aspects, and weak surface hoar crystals sit on shaded aspects from early March. Reports suggest this layer is bonding well. The mid and lower snowpack are generally strong and well settled.

Terrain and Travel

  • Watch for fresh storm slabs building throughout the day.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

Avalanche Problems

Storm Slabs

New storm and wind slabs will likely form throughout the day. Size and sensitivity to triggering will be greatest near ridge crests and steep roll overs on north and east facing terrain where wind loading is likely to occur.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Very Likely

Expected Size: 1 - 2