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Avalanche Forecast

Archived

Feb 12th, 2024–Feb 13th, 2024

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

Regions

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

Be on the lookout for recent wind slab formation across various aspects and elevations.

Confidence

Moderate

Avalanche Summary

Several explosive and skier-triggered storm slab avalanches occurred on Sunday, up to size 2, on a variety of aspects and elevations.

If you do go into the backcountry, please consider submitting a MIN report.

Snowpack Summary

Roughly 20 to 30 cm of recent snow has been redistributed by strong northerly winds in the alpine. At treeline and above, in wind-sheltered terrain, the new snow sits atop variable old surfaces, including large surface hoar crystals. In wind-exposed terrain and areas below treeline the new snow sits atop a widespread, thick crust.

The mid and lower snowpack remains well-bonded with no layers of concern.

Weather Summary

Monday Night

Clear skies. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -2 °C.

Tuesday

Sunny. 20 to 30 km/h northeast ridgetop wind. Treeline temperature -5 °C.

Wednesday

Sunny. 40 to 60 km/h east ridgetop wind. Treeline temperature -9 °C.

Thursday

Sunny. 50 to 70 km/h east ridgetop wind. Treeline temperature -9 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Stay off recently wind loaded slopes until they have had a chance to stabilize.
  • Be aware of the potential for larger than expected storm slabs due to the presence of buried surface hoar.

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.