Boletín de aludes

Waterton Lakes

Mar 24 – 27, 2025Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

Wed
Thu
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
3 · Notable
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Lo esencial

Freezing levels will be well above ridgetop for the next three days and a large avalanche cycle is expected to occur. Limit you exposure to overhead hazard and time spent on steep slopes as the cycle runs its course.

Problemas de aludes

  • Wind Slabs

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

    Solar triggered windslab avalanches were observed on Monday and likely to be a problem during this warmup.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–3

    This problem remains a concern on high northerly aspects where the bridging crusts are thin or non-existent. Windslabs, wet loose avalanches, or cornice fall may trigger these deeper weak layers.

  • Loose Wet

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

    Wet loose avalanches were observed on all aspects at treeline and below and on solar slopes in the alpine on Monday. Expect this to continue for the next few days.

Confidence

Moderate

Avalanche Summary

Numerous natural wet loose avalanches to size 2, and a few windslab and persistent slab avalanches to size 2.5 were observed on Monday.

Snowpack Summary

We have had 20 cm of new snow since the 20th and have been redistributed into windslabs 20 - 40 cm deep in lee features in the alpine and treeline. The warm temperatures are making the surface snow moist at all elevations. There is a robust melt freeze crust buried 30 - 80 cm deep. This crust exists everywhere except for northerly aspects above 1900 m. The January drought layer lies 50 –130 cm deep, with snow depths at treeline averaging 130–200 cm.

Weather Summary

A significant warmup has started with freezing levels above ridgetop. See the table below for a more detailed forecast.

Check out the Mountain Weather Forecast for the most up to date information.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • Avoid thin areas like rocky outcrops where you're most likely to trigger avalanches on deep weak layers.

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