Boletín de aludes

Lizard-Flathead

Mar 23 – 24, 2025Avalanche Canada
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Archivado · caducó 2 years ago

Peligro de aludes

Tue
Wed
Alta montaña
4 · Fuerte
Límite del bosque
4 · Fuerte
Bajo el límite
3 · Notable
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Lo esencial

7AM UPDATE: More snow fell overnight than forecast.

Avalanche danger will increase as rain wets the upper snowpack. Avoid exposure to avalanche terrain as natural activity is likely.

Problemas de aludes

  • Storm Slabs

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

    Up to 60 cm of snow from the past few days has formed slabs that are most reactive on steep, wind-affected slopes.

  • Loose Wet

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

    Loose wet avalanches will become increasingly likely as rain soaks the surface.

Confidence

Moderate

Avalanche Summary

Several natural and artificially triggered size 1 to 2 storm slab avalanches have occurred daily since Thursday.

Snowpack Summary

Surfaces are becoming wet as snow turns to rain.

A melt-freeze crust is found 60 cm deep, except on high-elevation north and east-facing slopes.

A surface hoar or facet layer from late January is buried 100 to 150 cm deep on north and east aspects at treeline and above. This may re-emerge as a persistent slab problem with warming this week.

Weather Summary

Sunday night

Cloudy with 10 to 30 cm of snow favouring Fernie area. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level rising to 2000 m.

Monday

Snow transitioning to rain, 5 to 15 mm. 30 to 50 km/h southwest ridgetop winds. Treeline temperature +1 °C. Freezing level rising to 2300 m.

Tuesday

5 to 15 mm of rain overnight then partly clearing skies. 20 to 30 km/h southwest ridgetop winds. Treeline temperature +6 °C. Freezing level rising to 2600 m.

Wednesday

Sunny. 10 to 20 km/h south ridgetop winds. Treeline temperature +10 °C. Freezing level rising to 3500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche danger will rapidly increase if snow switches to rain.
  • Be alert to conditions that change with aspect and elevation.
  • Cautiously approach steep slopes that are open or sparsely treed.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks, or recent avalanches.

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