Bulletin d’avalanche

South Columbia

Dec 29 – 30, 2023Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

Sun
Mon
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible

Points saillants

With no significant changes in the forecast, it's crucial to remember a layer of surface hoar may persist buried in the range of human triggering.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1.5–3

    A layer of surface hoar is down 60 to 100 cm in the snowpack. This layer remains concerning where a thick crust above is not present at higher elevations.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported in this region.

Data in this region is limited. Please consider sharing your observations on the Mountain Information Network (MIN).

Snowpack Summary

The upper snowpack is generally well settled, with some lingering wind-affected surfaces in alpine terrain.

A hard, supportive crust from the early December rain event is down roughly 60 cm and providing a bridging effect over several layers of note deeper in the snowpack.

A layer of surface down roughly 60 to 100 cm from the surface remains a concern in areas that do not have a bridging crust above.

The make-up of the lower snowpack is variable throughout the region, in shallower snowpack areas, basal facets may exist

Weather Summary

Thursday Night

Partly cloudy with no precipitation, southwest alpine winds 10 to 30 km/h, treeline temperature -3 °C.

Friday

Mix of sun and cloud with no precipitation, southwest 30 to 40 km/h, treeline temperature 0 °C, freezing level rising to 2000 m.

Saturday

Mix of sun and cloud with no precipitation, southeast alpine winds 30 to 40 km/h, treeline temperature 0 °C with above freezing temperatures in the alpine.

Sunday

Mostly cloudy with no precipitation, west alpine winds 10 to 20 km/h, treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use caution when approaching steep and rocky terrian.
  • Make observations and assess conditions continually as you travel.
  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.

Régions couvertes