Lawinenlagebericht

Kananaskis

Jan 27 – 29, 2020Avalanche Canada
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Archiviert · abgelaufen 7 years ago

Lawinengefahr

Wed
Thu
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering

Kernpunkte

Good skiing with settled snow can be found in sheltered areas of tree line and below. The alpine has widespread wind slabs.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–2.5

    There are several generations of wind slabs that need some more time to heal.  

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2–3.5

    It is worth to dig a pit to ground to see the severity of this basal layer.

Confidence

High -

Weather Forecast

Tuesday is expected to be a mix of cloud and sun with a chance of flurries. In the alpine, temps will be between -6c and -9c with light to moderate SW winds. Wednesday looks like a carbon copy of Tuesday.

Avalanche Summary

No new avalanches were observed.

Snowpack Summary

The alpine has widespread wind slabs that carry into the tree line (specific to ridges). The top 50cm of the snowpack is made up mostly of buried wind slabs that are still producing sheers. These will settle out with time but presently, still a concern for triggering them in the alpine and along ridges and lee features. This can cause the basal weakness to wake up and produce large avalanches. The weak temperature gradient within the snowpack is having a positive effect on the snowpack over the long haul. The basal facets/crust combo 40cm off the ground will be on our radar for a long time

Terrain and Travel

  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.
  • Carefully evaluate steep lines for wind slabs.
  • Avoid lee and cross-loaded slopes at and above treeline.

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