Bulletin d’avalanche

South Coast Inland

Apr 14 – 15, 2019Avalanche Canada
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Archivé · expiré 7 years ago

Danger d’avalanche

Tue
Wed
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Points saillants

5-15 cm of new snow and moderate to strong westerly winds have formed fresh wind slabs reactive to human triggers. Use caution around lee terrain features and steep, convex slopes.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    5-15 cm of new snow and moderate to strong westerly winds have formed fresh wind slabs reactive to human triggers. Use caution around lee terrain features and steep, convex slopes.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5
    When the sun comes out, expect the loose wet avalanche hazard to increase rapidly.

Confidence

High -

Weather Forecast

SUNDAY NIGHT: Mostly cloudy / Light, northwesterly winds / Alpine low -8 C / Freezing level 800 m..MONDAY: Mix of sun and cloud / Light, southwesterly winds / Alpine high -3 C / Freezing level 1600 m.TUESDAY: Mix of sun and cloud / Light, southwesterly winds / Alpine high -2 C / Freezing level 1600 m.WEDNESDAY: Mix of sun and cloud / Moderate, westerly winds / Alpine high 0 C / Freezing level 2000 m

Avalanche Summary

No new avalanches were reported in this region on Saturday.On Friday, a snowmobiler was buried in a size 2.5 wind slab avalanche on a north facing aspect at 2200 m. near the Blowdown cabin. Check out the MIN report HERE.

Snowpack Summary

Currently, the snowpack structure changes dramatically with elevation and aspect. 10-20 cm. of recent storm snow (amounts tapering with elevation) is sitting on a melt/freeze crust, except for north facing terrain above 2000 m. where the old snow surface remained dry and small surface hoar (weak, feathery crystals) may be present in isolated locations. This recent snow has been affected by the sun and re-distributed by southerly winds, forming wind slabs on lee features below ridgetops.Below roughly 1900 m, the snowpack is moist and is melting rapidly at lower elevations. Check out this useful link for managing avalanche hazard during spring conditions HERE.

Régions couvertes