Boletín de aludes

Kananaskis

Jan 31 – Feb 2, 2024Avalanche Canada
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Archivado · caducó 3 years ago

Peligro de aludes

Fri
Sat
Alta montaña
3 · Notable
Límite del bosque
4 · Fuerte
Bajo el límite
3 · Notable

Lo esencial

Heat has, and will continue to weaken the snowpack until the next cool off this week-end. Right now its probably best to focus on non avalanche related activities.

Problemas de aludes

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1.5–3

    Persistent and wet slabs have been seen to be failing on the arctic facets down 30-50cm

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    1–2

    Surface snow becoming moist and wet with high freezing levels.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2

    Recent evidence exists of avalanche failing in the basal facets and depth hoar close to ground.

Confidence

High

Avalanche Summary

No field trip today, but its expected that the loose wet avalanches have continued through the day.

Snowpack Summary

Warm temps are making the snowpack isothermal in lower elevation areas and making the top 10-30cm moist at treeline and above. Light overnight freezes are helping, but they just can't compete with the daytime highs. Every day the snowpack is becoming weaker and weaker. This warmth induced rapid settlement is overloading the weak basal facets, and in some areas triggering full depth avalanches. Travel in avalanche terrain is not recommended at this time.

Weather Summary

It's not very often that we discuss freezing levels in early February...yet here we are. Tomorrow will start at -4 and rise to +2 by mid afternoon. Food for thought: as I write this Mud lake is sitting at an impossible +7! Tomorrow could be much warmer than predicted. The rest of the weather news isn't much more inspiring. Light winds from the south, broken to overcast cloud cover and no snow.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.
  • In areas where deep persistent slabs may exist, avoid shallow or variable depth snowpacks and unsupported terrain features.
  • Watch for unstable snow on specific terrain features, especially when the snow is moist or wet.

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