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Avalanche Forecast

Archived

Apr 7th, 2024–Apr 8th, 2024

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

Regions

North Columbia, South Columbia, Clearwater, Jordan, North Monashee, North Selkirk, Shuswap, Badshot-Battle, Central Selkirk, Goat, Gold, North Okanagan, Whatshan.

Thin wind slabs may still exist in high north facing alpine terrain where the snow remains dry.

Confidence

High

Avalanche Summary

Avalanche activity on Saturday was mostly reported as loose wet size 1-2 from steep terrain facing the sun.

Snowpack Summary

Surface snow is likely a supportive crust or moist snow at all elevations except high north facing. Weak faceted grains sitting a crust formed in early February are now buried 100 to 150 cm. This layer has generally been gaining strength, however it is still occasionally producing large avalanches at upper elevations where supportive crusts have not formed above it.

Weather Summary

Sunday Night

Partly cloudy. Ridge wind southwest 15 to 30 km/h. Treeline temperature -6 °C. Freezing level 1200 m.

Monday

Cloudy with 2-5 cm snow at higher elevations. Ridge wind southwest 20 to 40 km/h . Treeline temperature -2 °C. Freezing level 1600 m.

Tuesday

Cloudy with 5 to 15 cm of snow at upper elevations. Ridge wind southwest 30 to 60 km/h. Treeline temperature -1 °C. Freezing level 1700 m.

Wednesday

Mainly clear. Ridge wind northwest 10 to 20 km/h. Treeline temperature 1 °C. Freezing level 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

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.