Lawinenlagebericht

Banff Yoho Kootenay

Mar 5 – 6, 2012Parks Canada
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Archiviert · abgelaufen 15 years ago

Lawinengefahr

Mon
Tue
Hochgebirge
4 · Gross
Waldgrenze
4 · Gross
Unterhalb
3 · Erheblich

Kernpunkte

A natural avalanche cycle to size 3 is occurring, and the spike of this system will happen early tomorrow. We may dip into extreme during this time. 48hr. snowfall amounts so far 30cm to 70cm, and rain in Field and Kootenay, 30 cm more possible.SH

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely - Very Likely
    Größe
    1–3
    Fresh and buried wind slabs up to 60cm thick are primed for triggering. They have been seen to step down onto the Valentines surface hoar layer to cause larger avalanches.
  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely - Very Likely
    Größe
    2–3
    Snow depths over the Valentines surface hoar and sun crust on steep solar aspects range from 40cm E of the Divide, to 90+cm at Sunshine and Yoho. Continuing warm, dense snowfall and strong winds will increase natural activity on this layer.
  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–2
    Recent trips east of the Divide have found a shallow, weak snowpack. Tests done showed sudden collapse results on the basal facets. It is still possible to trigger the entire slope from shallow, thinly covered areas.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

on Monday

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