Bulletin d’avalanche

South Coast Inland

Apr 11 – 12, 2022Avalanche Canada
Voir sur la carte
Archivé · expiré 4 years ago

Danger d’avalanche

Wed
Thu
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
Ouvrir la carte complète

Points saillants

Wind slabs may be found in steep terrain at high elevations.

Problèmes avalancheux

  • Wind Slabs

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

    Wind slabs may be found in alpine terrain. Use caution entering steep slopes below ridges.

Confidence

High - The snowpack structure is generally well understood.

Weather Forecast

MONDAY NIGHT: Mostly cloudy with isolated snowfall, accumulation 1 to 3 cm, 20 to 30 km/h northeast wind, alpine temperature -10 C.

TUESDAY: Cloudy with isolated snowfall, accumulation 1 to 3 cm, 20 to 30 km/h northeast wind, alpine temperature -10 C.

WEDNESDAY: Mostly cloudy with isolated snowfall, accumulation 1 to 3 cm, 10 km/h northeast wind, alpine temperature -10 C.

THURSDAY: Mostly cloudy with isolated snowfall, accumulation 1 to 3 cm, 10 km/h northeast wind, alpine temperature -10 C.

Avalanche Summary

A few small loose avalanches were observed out of steep terrain on Sunday. Otherwise, no recent avalanches were reported.

Looking forward, wind slabs could be triggered by riders out of steep terrain at high elevations. Best to stay well back of cornices too, as they are very large at this time of year.

Snowpack Summary

10 to 20 cm of dry, wind-affected snow sits above a hard melt-freeze crust in the alpine. Wind slabs may be found in lee terrain features in the alpine from recent northeast wind. A surface melt-freeze crust is found at treeline and below, which may moisten during daytime heating.

Various melt-freeze crusts exist in the upper to middle snowpack, which reports suggest are bonding well. There are no deeper concerns at this time.

Terrain and Travel

  • Carefully evaluate steep lines for wind slabs.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

Régions couvertes