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Avalanche Forecast

Archived

Feb 6th, 2024–Feb 7th, 2024

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.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Sea To Sky, Brandywine, Garibaldi, Homathko, Spearhead, Tantalus, Sky Pilot.

Lingering wind slabs may remain reactive to human triggers in isolated locations below alpine ridgetops.

Carefully evaluate steep lines for wind slabs.

Confidence

High

Avalanche Summary

No new avalanches were reported in this region on Monday.

A little northwest of the region, a skier triggered size 1.5 wind slab avalanche was reported on a northwest aspect in the alpine. It failed on facets sitting on the crust buried in late January.

Snowpack Summary

Lingering wind slabs may exist below alpine ridgetops.

Above 1900 m, 10 - 40 cm of recent snow sits on a supportive crust.

Below 1900 m, recent snow amounts taper quickly and the crust increases in thickness.

Where snow still exists below treeline, it is isothermal and travel is very challenging.

Weather Summary

Tuesday night

Mostly cloudy. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -6 C. Freezing level valley bottom.

Wednesday

Mix of sun and cloud. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -5 C. Freezing level 1000 m.

Thursday

Mix of sun and cloud. 10 to 20 km/h west ridgetop wind. Treeline temperature -6 C. Freezing level valley bottom.

Friday

Mix of sun and cloud. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -4 C. Freezing level 1000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Even a small avalanche can be harmful if it pushes you into an obstacle or a terrain trap.
  • Carefully evaluate steep lines for wind slabs.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

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.