Bulletin d’avalanche

Microwave-Sinclair

Feb 5 – 6, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Fri
Sat
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
1 · Faible
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Points saillants

Use extra caution in exposed terrain where wind affect is significant

The best riding will be found in sheltered terrain

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2

    Northeast winds have heavily impacted the snow surface. Wind slabs are likely in exposed terrain.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–2.5

    A 50 to 100 cm deep weak layer from early December, may be possible to trigger on steep, rocky or shallow slopes.

Confidence

Moderate

Avalanche Summary

On Sunday, in the Hankin area, a natural wind slab avalanche was observed above the cabin. Review this MIN for further details.

During last weeks avalanche cycle, wind slabs were able to step down to weak layers from December.

Snowpack Summary

Moderate to strong northeast outflow wind continues to impact the snow surface in exposed terrain. In sheltered terrain 20 to 40 cm of snow overlies a layer of facets and a crust from late January. Surface hoar may also be found at this interface.

A layer of facets and crust from early December is buried approximately 60 to 120 cm deep.

Weather Summary

Tuesday Night

Clear skies. 25 to 50 km/h northeast ridgetop wind. Treeline temperature -14 °C, potential temperature inversion with colder temperatures at valley bottom.

Wednesday

Sunny. 20 to 40 km/h north ridgetop wind. Treeline temperature -12 °C, temperature inversion breaking down during day.

Thursday

Sunny in the morning and increasing cloud in the late afternoon. 20 to 30 km/h east ridgetop wind. Treeline temperature -16 °C.

Friday

Sunny. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -17 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

Régions couvertes