Boletín de aludes

Kootenay Boundary

Nov 21 – 22, 2024Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

Sat
Sun
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado

Lo esencial

Lots of new snow has increased the avalanche danger.

The best and safest riding will be found on low-angle slopes with no terrain traps below.

Problemas de aludes

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    1–2.5

    New snow needs time to settle and bond. If triggered, this problem may run on the crust near the base of the snowpack.

Confidence

Low

Avalanche Summary

A large (size 2.5) natural storm slab occurred on Thursday in the Lizard Range. It was on a fan feature below a headwall.

Numerous small, wind slabs were triggered by riders in open areas near Nelson on Wednesday.

A large rider-accidental avalanche was triggered at Harvey Pass, Fernie on Monday. It started as a storm slab and stepped down to the crust near the base of the snowpack.

Snowpack Summary

The top of the snowpack consists of 20 cm of new snow on top of another 30-40 cm from last weekend.
The bottom is moist snow or a crust from early November that is just above the ground. The crust has acted as a bed surface for recent avalanches, it's unclear how long this layer will last.
Snowpack depth is 80-100 cm at treeline.

Weather Summary

Thursday Night

Cloudy with 5 to 10 cm of snow. 10 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Friday

Cloudy with 5 to 10 cm of snow. 10 km/h east ridgetop wind. Treeline temperature -5 °C.

Saturday

Cloudy with 10 to 20 cm of snow. 10 to 20 km/h west ridgetop wind. Treeline temperature -6 °C.

Sunday

Mostly cloudy with 5 to 10 cm of snow. 10 km/h west ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for fresh storm slabs building throughout the day.
  • As the storm slab problem worsens, the easy solution is to choose more conservative terrain.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.

Regiones cubiertas