Bulletin d’avalanche

South Coast

Mar 29 – 30, 2017Avalanche Canada
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Archivé · expiré 10 years ago

Danger d’avalanche

Fri
Sat
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Points saillants

With the sun potentially coming out for an extended period of time on Thursday, expect storm slabs to be reactive at upper elevations

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–3
    Recent moderate to strong wind and heavy precipitation has formed storm slabs that increase in depth and reactivity with elevation. Expect deeper slabs and touchier conditions on the lee side of wind exposed terrain features.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    With the potential of extended sun exposure on Thursday, expect the snow surface to stay wet below tree line

Confidence

Moderate - Timing or intensity of solar radiation is uncertain on Thursday

Weather Forecast

THURSDAY: Cloudy with sunny periods / Light north wind / Alpine temperature -1 / Freezing level 1000mFRIDAY: Mainly cloudy / Light west wind / Alpine temperature -1 / Freezing level 1100mSATURDAY: Isolated flurries / Light west wind / Alpine temperature 2 / Freezing level 1400m

Avalanche Summary

On Thursday expect reactive storm and wind slab avalanches in the alpine and tree line elevation bands where the recent precipitation has fallen as snow. Below tree line expect small loose snow avalanches where rain has soaked the snowpack.

Snowpack Summary

The last 48 hours has seen very heavy amounts of precipitation. The freezing level hovered around tree line during that time. Reports from the region have been few and far between, however it can be expected that 70-100cm of snow has fallen at upper elevations. The new snow would have been redistributed by moderate to strong southwest wind and is sitting on a well settled lower snowpack. Rain below tree line has soaked an already moist and/or wet lower snowpack.

Régions couvertes