Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Feb 23rd, 2024–Feb 24th, 2024
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
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
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

Regions: Bonnington, Crawford, Grohman, Kokanee, Kootenay Boundary, Kootenay Pass, Moyie, Norns, Rossland, St. Mary, Valhalla, Ymir.

A buried crust associated with faceted snow remains a concern. Carefully assess steep lines for signs of instability.

Confidence

Moderate

Avalanche Summary

Several skier-triggered avalanches (size 1 to 2) have been reported since Wednesday. These avalanches have failed on a crust/facet combination down roughly 30 to 40 cm from the surface, in steep treeline and alpine terrain.

Snowpack Summary

Up to 20 cm of recent heavy, dense snow has buried various old surfaces, including sun crusts on south-facing slopes and hard previously wind-affected surfaces in exposed terrain. Snow surfaces remain generally moist below treeline.

A widespread crust formed in early February exists down roughly 30 to 50 cm. In many areas, small, weak faceted grains have formed just above or below this crust.

The mid and lower snowpack is generally well settled.

Weather Summary

Friday Night

Mostly cloudy with 0 to 2 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -5 °C. Freezing level 1500 m.

Saturday

Cloudy with 0 to 2 cm of snow. 20 to 40 km/h west ridgetop wind. Treeline temperature -5 °C. Freezing level 1500 m.

Sunday

Cloudy with 0 to 15 cm of snow. 30 to 50 km/h west ridgetop wind. Treeline temperature -5 °C. Freezing level 1500 m.

Monday

Mix of sun and cloud with 0 to 5 cm of snow. 10 to 30 km/h southwest ridgetop wind. Treeline temperature -11 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Avoid areas where the snow feels stiff and/or slabby.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.

Avalanche Problems

Persistent Slabs

Recent snow has buried a widespread crust in the upper snowpack, with weak facets forming above or below. This is a particular concern on steep slopes with a cohesive slab on the surface that could fail on this layer or step down to the crust.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2