Lawinenlagebericht

Kananaskis

Dec 20 – 21, 2020Avalanche Canada
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Archiviert · abgelaufen 6 years ago

Lawinengefahr

Tue
Wed
Hochgebirge
4 · Gross
Waldgrenze
3 · Erheblich
Unterhalb
2 · Mässig

Kernpunkte

Rapidly changing conditions. Avoid avalanche terrain.   

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1.5–2.5

    This is a buried wind slab, 20-60cm down have not seen much activity on this layer but could become reactive with load. Could be more of a crust on South aspects.

  • Storm Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Very Likely
    Größe
    1.5–2.5
  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely
    Größe
    2.5–3.5

Confidence

Moderate -

Weather Forecast

Snow expected to begin later tonight bringing 3-8cm . Wind will continue thought the night with gust close to 100km. Snow will increase throughout Monday right in to Tuesday evening could bring 20-25cm.

Avalanche Summary

A few natural slab avalanche up to size 2 on all aspects except for west aspects. There were also a few more loose dry from steeper terrain running quite far. 

Snowpack Summary

Up to 25cm of new snow, with very strong winds lee slopes would have much more snow possibly up to 1m. 20-100cm overlying the Dec 8th facet crust interface. Wide spreed wind affect in Alpine in to open tree line features. Caution for reverse loading with the strong North winds. Found soft to hard slabs. 

Terrain and Travel

  • Watch for fresh storm slabs building throughout the day.
  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Watch for changing conditions today, storm slabs may become increasingly reactive.

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