Bollettino valanghe

Kootenay Boundary

Dec 24 – 25, 2024Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 2 years ago

Pericolo valanghe

Thu
Fri
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
2 · Moderato
Apri la mappa completa

In sintesi

Heightened avalanche conditions persist due to uncertainty over buried weak layers' distribution and reactivity, despite a generally stable snowpack otherwise.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    Recent snowfall has been redistributed into fresh wind slabs at higher elevations.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–2.5

    Buried surface hoar, and in some areas facets over a crust remain a concern. Particularly in steep open slopes at treeline and above.

Confidence

Moderate

Avalanche Summary

A few skier and explosive-triggered surface slab avalanches were reported over the weekend. These avalanches were generally no deeper than 15 cm and up to size 1.5.

Snowpack Summary

Up to 20 cm of new snow over the weekend continues to settle and bond to undelaying surfaces. Southwest winds have redistributed new snow into deeper deposits at higher elevations. At lower elevations, surface conditions range from crusty to moist, depending on the time of day and local temperatures.

Down 50 to 100 cm there are potential weak layers of facets, crusts, and in some places surface hoar. The distribution of these layers is highly variable throughout the region.

Treeline snow depths range from 100 to 180 cm.

Weather Summary

Monday Night

Cloudy with 0 to 5 cm of snow. 10 to 30 km/h south ridgetop wind. Treeline temperature -4 °C.

Tuesday

Cloudy with 5 to 15 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -4 °C.

Wednesday

Mix of sun and cloud with 0 to 2 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -7 °C.

Thursday

Cloudy with up to 20 cm of snow. 30 to 50 km/h south ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Approach steep and open slopes at and below treeline cautiously, as buried surface hoar may exist.
  • Surface hoar distribution is highly variable. Avoid generalizing your observations.
  • Be careful as you transition into wind-affected terrain.

Regioni coperte