Lawinenlagebericht

Kananaskis

Dec 16 – 17, 2020Avalanche Canada
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Archiviert · abgelaufen 6 years ago

Lawinengefahr

Fri
Sat
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering

Kernpunkte

Strong winds and snow on the way. Approach tree line with this in mind. Good skiing can be found in sheltered areas.

Lawinenprobleme

  • Wind Slabs

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

    Winds are finally starting to make some fresh windslabs out there. As these build they will become more reactive and have larger consequenecs to skiers and boarders. 

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1.5–3

    There seems to be lots of variability with this layer. As always, thin areas transitioning to localized wind loaded pockets will be more sensitive.

Confidence

High -

Weather Forecast

Thursday is forecast to bring 10-15cm of snow, along with strong SW winds and a temperature of -7c in the alpine. Expect fresh wind slabs to begin forming.

Avalanche Summary

Only some spindrift was observed out of steep cliffs.

Snowpack Summary

Thursday is expected to bring 10-15cm of snow for a total of about 30-40cm of loose snow that is starting to move around in the alpine. The concern now is when this turns into a fresh wind slab, it will be sitting on top of the December 8 crust which will be about 30-40cm down. This 0.5cm crust was formed during the warm spell 10 days ago and is quite a smooth surface for a slab to release on. Approach tree line and lee features with your radar on. With all this snow and wind coming, cornices will begin to grow.

Terrain and Travel

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • If you are increasing your exposure to avalanche terrain, do it gradually as you gather information.

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