Bulletin d’avalanche

Lizard-Flathead

Mar 29 – 30, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

Sun
Mon
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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Points saillants

20 to 35 cm of recent snow has formed storm slabs that are reactive to human triggers, especially in wind affected terrain.

Use small low consequence slopes to test the bond of the new snow.

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2.5

    20 to 35 cm of recent snow has formed storm slabs that are reactive to human triggers, especially in wind affected terrain.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Very Likely
    Taille
    1–1.5

    Expect the sunshine to trigger wet loose avalanches on sunny aspects at all elevations.

Confidence

High

Avalanche Summary

Numerous naturally and explosive triggered storm slab avalanches up to size 2.5 were reported on mostly northerly aspects at treeline and above near Fernie on Thursday.

Snowpack Summary

20 to 35 cm of recent snow overlies a crust on all but north facing aspects in the alpine.

A widespread crust with facets above is buried up to 180 cm deep. Steep or convex terrain features with a shallow or thin to thick snowpack at treeline and above are the places where it may still be possible to trigger this layer with large loads.

Weather Summary

Friday Night

Partly cloudy with isolated flurries, 0 to 5 cm snow. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -8° C. Freezing level valley bottom.

Saturday

Sunny. 10 to 20 km/h west ridgetop wind. Treeline temperature -2° C. Freezing level 1800 m.

Sunday

Mix of sun and cloud. 30 to 40 km/h northeast ridgetop wind. Treeline temperature -3° C. Freezing level 1700 m.

Monday

Sunny. 20 to 30 km/h northwest ridgetop wind. Treeline temperature 3° C. Freezing level 2500 m.

Check out the Mountain Weather Forecast for additional weather information.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Look for signs of instability: whumphing, hollow sounds, shooting cracks, and recent avalanches.
  • Use small low consequence slopes to test the bond of the new snow.
  • Watch for changing conditions today, storm slabs may become increasingly reactive.
  • If triggered loose wet avalanches may step down to deeper layers resulting in larger avalanches.
  • Cornice failure may trigger large avalanches.

Régions couvertes