Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Nov 28th, 2024–Nov 29th, 2024

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Kootenay Boundary, Bonnington, Grohman, Kootenay Pass, Norns, Rossland, Ymir, Crawford, Kokanee.

Travel with caution around steep wind-affected slopes.

Confidence

Moderate

Avalanche Summary

No recent human-triggered avalanches have been reported, but a few size 1 to 2 slab avalanches were triggered by explosives earlier this week, mainly on south and southwest aspects. The storm snow should now be well-bonded, except in areas recently affected by wind loading.

Snowpack Summary

Last week's 40 to 70 cm of snow remains soft in sheltered areas but may have formed reactive slabs in wind-affected terrain, particularly near ridgelines.

The snowpack is generally strong, with small surface hoar 50 to 70 cm deep and melt-freeze crusts near the ground, though no recent avalanches have been reported on these layers.

Treeline snow depths are around 100 to 150 cm.

Weather Summary

Thursday Night

Cloudy. 15 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Friday

Cloudy. 15 km/h west ridgetop wind. Treeline temperature -7 °C.

Saturday

Mix of sun and cloud with 0 to 1 cm of snow. 15 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Sunday

Mostly cloudy with 0 to 2 cm of snow. 25 km/h southwest ridgetop wind. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Seek out sheltered terrain where new snow hasn't been affected by wind.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.