Bollettino valanghe

Lizard-Flathead

Feb 17 – 18, 2025Avalanche Canada
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Archiviato · scaduto 2 years ago

Pericolo valanghe

Wed
Thu
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
2 · Moderato

In sintesi

A buried weak layer exists.

Watch for signs of instability, like whumpfing.

Problemi valanghivi

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1.5–2.5

    The late January weak layer is a problem where the snow above it is stiff and slabby. Read more about it in our Blog.

  • Loose Dry

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    Light, dry snow may gather mass as it moves downhill. Avoid being underneath steep features.

Confidence

Moderate

Avalanche Summary

There were numerous, small dry loose avalanches triggered by riders on Friday and Saturday.

Snowpack Summary

20 cm of low-density snow fell on Friday and Saturday and may have formed deeper deposits in lee areas due to the wind near ridge top.

The storm snow is sitting on 30 to 60 cm of faceted old snow. Below this is a persistent weak layer buried in late January. Which is a crust on sun-exposed slopes, and facets and surface hoar elsewhere.

The mid and lower snowpack is generally well settled, with no other layers of concern.

Weather Summary

Sunday Night

Mostly cloudy with 5 to 10 cm of snow. 10 km/h north ridgetop wind. Treeline temperature -15 °C.

Monday

Mostly cloudy with 2 cm of snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -12 °C.

Tuesday

A mix of sun and clouds. 15 to 25 km/h northeast ridgetop wind. Treeline temperature -15 °C.

Wednesday

Sunny. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -12 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
  • Use appropriate sluff management techniques.
  • Make observations and continually assess conditions as you travel.

Regioni coperte