Bollettino valanghe

Sea To Sky

Dec 4 – 5, 2025Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 10 months ago

Pericolo valanghe

Sat
Sun
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
Apri la mappa completa

In sintesi

New snow has buried a potential weak layer. Test how the new snow is bonding before increasing your exposure.

Travel cautiously, as the snowpack is shallow and hides thinly buried hazards.

Problemi valanghivi

  • Wind Slabs

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

    Ongoing and shifting moderate winds continue to build wind slabs on terrain near or just below ridge crests.

Confidence

Moderate

Avalanche Summary

On Tuesday a period of sun and warming triggered numerous small (size 1) small wet loose avalanches, confined to steep south-facing terrain.

On Monday, a few small (size 1) wind slab avalanches where reported to have occurred on isolated steep terrain features that are adjacent to ridge crests.

If you're heading out into the backcountry, please consider sharing your observations on the MIN.

Snowpack Summary

Up to 15 cm of new snow has buried a variety of potentially weak crystals, including: surface hoar and facets. The new snow may not bond well to the old surface. On steep south through to west aspect terrain, a short period of warming and sun has created a new surface crust.

A firm crust that formed in early November can be found 30 to 100 cm deep in the alpine and at treeline. Weak, sugary facets have been spotted above and below the crust. This layer isn't currently a concern, but once more snow arrives it could produce avalanches.

Expect to find 50 to 150 cm of snow, treeline and above, with snowpack depth decreasing rapidly below 1600 m.

Weather Summary

Wednesday Night

Cloudy. 4 to 5 cm of snow at treeline. 40 km/h northwest ridgetop wind. Treeline temperature -2 °C. Freezing level 900 m.

Thursday

Cloudy. 4 to 5 cm of snow at treeline. 30 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1200 m.

Friday

Mostly cloudy. 45 to 55 mm of precipitation as snow or rain at treeline. 50 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level 1500 m.

Saturday

Mix of sun and clouds. 15 to 20 cm of snow at treeline. 40 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use small, low consequence slopes to test the bond of the new snow.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • Be cautious of buried obstacles, especially below treeline.

Regioni coperte