Bollettino valanghe

Kootenay Boundary

Feb 23 – 24, 2026Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 7 months ago

Pericolo valanghe

Wed
Thu
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
3 · Marcato
Apri la mappa completa

In sintesi

Stick to conservative, low consequence terrain.

Storm snow and strong wind are weakening a concerning upper snowpack, human triggered avalanches are likely as a result.

Problemi valanghivi

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1.5–3

    Several weak layers in the snowpack may be rider triggerable. These layers are present at all elevations.

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely - Very Likely
    Dimensione
    1–2.5

    Storm slabs are expected to increase in size and likelihood throughout the day on Monday. These avalanches will be largest and most reactive on north and east aspects at treeline and above. Storm slabs may step down to deeper layers.

Confidence

Moderate

  • We are confident that there are persistent slabs in the snowpack, but uncertain about how likely they are to trigger.

Avalanche Summary

On Saturday, a rider triggered a large (size 2.5) persistent slab avalanche near Whitewater. It occurred on a northeast aspect at treeline and possibly stepped down to the January weak layer.

Over the past couple days avalanches have occurred on all aspects and elevations. Avalanche types included, dry loose, storm slabs, and persistent slabs. These avalanches were triggered naturally and by skiers.

Snowpack Summary

By Monday afternoon up to 30 cm of fresh snow is expected. This new snow will be accompanied by strong southwest wind forming deeper deposits on north and east aspects. In sheltered terrain it will overlie a layer of surface hoar.

Several concerning weak layers exist in the upper snowpack:

  • Mid February surface hoar and sun crust buried 15 to 40 cm deep.

  • February 7th surface hoar and crust buried 25 to 45 cm deep.

  • January 26th surface hoar, crust, and facet layer buried 50 to 80 cm deep.

The mid and lower snowpack are well settled.

Weather Summary

Sunday Night
Cloudy. 5 to 15 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Monday
Cloudy. 5 to 15 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Tuesday
Mostly sunny. 1 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -7 °C.

Wednesday
Mostly sunny. 1 to 4 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -7 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Don't let storm day fever lure you into consequential terrain.
  • Be aware of the potential for remote triggering and large avalanches due to buried surface hoar.
  • Keep your guard up at lower elevations. Storms slabs have been reactive at all elevations.

Regioni coperte