Boletín de aludes

Lizard-Flathead

Apr 25 – 28, 2025Avalanche Canada
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Archivado · caducó last year

Peligro de aludes

Sun
Mon
Alta montaña
3 · Notable
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
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Lo esencial

Start your day early and watch the crust closely.

As it breaks down, reduce your exposure to avalanche terrain.

Problemas de aludes

  • Cornices

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1.5–2.5

    Cornices are more likely to fail during warm weather.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3

    Wet loose avalanches will become more likely as the sun and warmth affect the snowpack. Start early, and avoid the hottest part of the day.

  • Wet Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–3

    Multiple days of warm temperatures and minimal overnight cooling may cause large, wet slab avalanches.

Confidence

Low

Avalanche Summary

On Wednesday, a small wet loose avalanche (size 1.5) was reported near Fernie in the early afternoon.

No other avalanches have been observed since Monday. However, observations are very limited at this time of year.

Snowpack Summary

On northerly slopes in the alpine, there may still be around 20 cm of soft snow from earlier in the week, potentially wind affected in exposed areas. Everywhere else, it's likely a crust will form overnight and break down during the day. Another crust is buried 20 to 30 cm deep.

The mid/lower snowpack is well settled and strong, but may weaken with continued high temperatures.

Lower elevations are melting out rapidly.

Weather Summary

Friday Night

Clear skies. 10 to 20 km/h east ridgetop wind. Treeline temperature 4 °C. Freezing level (at least) 2500 m.

Saturday

A mix of sun and cloud. 10 km/h southwest ridgetop wind. Treeline temperature 9 °C. Freezing level (at least) 2800 m.

Sunday

Mix of sun and cloud. 10 km/h northeast ridgetop wind. Treeline temperature 6 °C. Freezing level 2700 m.

Monday

Mostly cloudy with up to 10 cm/mm of snow/rain. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 5 °C. Freezing level 2700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The more the snowpack warms up and weakens, the more conservative your terrain selection should be.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • Avalanche danger will increase as the surface crust breaks down.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

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