Boletín de aludes

Kananaskis

Mar 6 – 7, 2015Alberta Parks
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Archivado · caducó 12 years ago

Peligro de aludes

Sun
Mon
Alta montaña
1 · Débil
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
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Lo esencial

The back country skiing is less than inspiring these days. Widespread wind slabs offer very challenging conditions!

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2
    Open areas near ridges are seeing hard slab development. With the ongoing wind event, we can expect these to grow and become a concern. Extreme alpine winds have kept this problem limited to treeline.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    2–4
    We've officially hit the low probability, high consequence stage with this layer. Steep terrain with exposed rocks and a shallow snow pack are a considered a trouble area. Treat these areas with caution.

Confidence

Good

Weather Forecast

Extreme winds will continue throughout the night. Gusts are expected to reach 90km/hr! The good news is that the temperatures will be reasonably warm, -4 is the expected 2500m low tonight. Tomorrow will see the winds diminish and drop to 30km/r, gusting to 70km/hr from the west. The temperatures will remain around -5 with cloudy skies. No new snow is expected. Freezing level 1500m.

Avalanche Summary

Some spindrift avalanches were seen this morning. Confined alpine gullies in the front ranges had small spindrift avalanches pouring down regularly.

Snowpack Summary

Wind was the name of the game today. Somehow the winds managed to scrub even more snow away during the day today. Most of the snow was picked up and blown to Saskatchewan or sublimated away by the warm air temp. Not a lot of further slab development today in the alpine. Existing alpine surfaces are windslabs of various densities. Treeline is a similar story except for the continued formation of isolated windslabs in open areas. Below treeline is still a breakable crust buried beneath 5-10 cm's of snow.

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