Lawinenlagebericht

South Coast

Jan 23 – 24, 2014Avalanche Canada
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Archiviert · abgelaufen 13 years ago

Lawinengefahr

Sat
Sun
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Kernpunkte

Lawinenprobleme

  • Loose Wet

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1–2
    Generally small, slow, and often limited to extreme cliffy terrain; however, these dense avalanches can easily knock you off your feet and take you for a ride.

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    3–6
    Particularly a concern on shallow rocky southern aspects with heavy triggers. Warm temperature and sun-exposure are expected to increase the likelihood of triggering these facets deep in the snowpack. Cornice falls could also act as natural triggers.

Confidence

Fair - Due to the number of field observations

Weather Forecast

Friday and Saturday: Mostly sunny with the possibility of valley fog in the morning. Light winds. Freezing level reaching 3500m with alpine temperatures close to +10 C, but a weak temperature inversion may make it cooler in valley bottoms. Sunday: Sunny with cloudy periods. Light winds. Freezing level reaching 2500m.

Avalanche Summary

No significant avalanches have been reported for several days. Small loose wet avalanches are likely, especially on sun-exposed slopes in the afternoon.

Snowpack Summary

The surface snow is likely undergoing a melt-freeze cycle on all but high elevation shady aspects, while the entire snowpack may even be trending isothermal at lower elevations. On shady aspects expect to find faceted powder; however, in exposed areas winds have scoured windward slopes, left deep drifts on lee aspects, and and sculpted sastrugi. The record low snowpack is generally well settled and strong; however, a facet/crust combo from late November down approximately 100-120 cm at treeline and alpine elevations continues to give sudden results in snowpack tests. Facets and depth hoar at the base of the snowpack remain a concern on slopes with a shallow and variable snowpack in the Duffey Lake and Chilcotin areas.

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