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Avalanche Forecast

Archived

Nov 24th, 2024–Nov 25th, 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, South Coast Inland, Brandywine, Homathko, Spearhead, Birkenhead, Duffey, Harrison-Fraser, South Chilcotin, Stein, Taseko.

Storm and wind slabs at upper elevations are the main concern.

Confidence

Moderate

Avalanche Summary

There were of a few explosives triggered size 2 storm slab avalanches on a northerly aspects in the alpine on Saturday and Sunday. There were also several skier and explosives controlled size 1-1.5 storm and wind slab avalanches reported on Saturday as well.

Snowpack Summary

Snow and strong wind from earlier this week have formed widespread storm and wind slabs in lee terrain features.

Various melt-freeze crusts can be found in the lower half of the snowpack, which are not concerning avalanche layers.

The snowpack is around 120 to 150 cm at treeline and decreases at low elevations.

Weather Summary

Sunday Night

Mostly cloudy with 0 to 2 cm of snow. 10 to 20 km/h southeast ridgetop wind. Treeline temperature -6 °C.

Monday

Mix of sun and cloud. 5-15 km/h southeast ridgetop wind. Treeline temperature -4 °C. Freezing level 600-900 m.

Tuesday

Mix of sun and cloud. 15 to 25 km/h northwest ridgetop wind. Treeline temperature -5 °C. Freezing level 500-800 m.

Wednesday

Mix of sun and cloud. 20-30 km/h northwest ridgetop wind. Treeline temperature -6 °C. Freezing level 500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Give the new snow several days to settle and stabilize before pushing into bigger terrain.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.