Boletín de aludes

Kananaskis

Nov 17 – 18, 2017Alberta Parks
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Archivado · caducó 9 years ago

Peligro de aludes

Sun
Mon
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
Sin grado
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Lo esencial

We've had enough snow recently to increase the coverage and avalanche hazard. How the wind distributes the snow is the big question. Watch closely for windloading as the winds increase.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    The winds started to kick in this afternoon. Slabs will build quickly with the amount of available snow. Expect them to reach further down from ridge crests than we have been used to.

Confidence

High -

Weather Forecast

We are expecting snow to come in for Sunday. In the meantime, westerly winds will increase to 55km tonight and tomorrow. Flurries will accompany winds, but amounts won't add up much until Sunday. Temperatures will remain steady at -10°.

Avalanche Summary

Nothing new today.

Snowpack Summary

10-20 cm of new snow came in yesterday and last night. While below treeline areas are improving for coverage, we are still below threshold in terms of avalanche problems. At treeline, the story changes significantly. We have two layers of interest: the "Halloween" crust and recent windslabs. The crust depth varies, but it is generally down 30-40cm from the top. The windslabs sit above the crust and vary in thickness (on average 20-40cm). Tests have had repeatable failures immediately below the crust on a layer facets. As of this afternoon, winds were increasing with windslab development ongoing.

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