Bulletin d’avalanche

Spearhead

Mar 4 – 5, 2026Avalanche Canada
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Archivé · expiré 7 months ago

Danger d’avalanche

Fri
Sat
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré

Points saillants

Significant snowfall and wind in the past 24 hours will have created fresh, reactive storm slabs.

Choose small, low-consequence terrain and avoid overhead hazard.

Problèmes avalancheux

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2

    Up to 30 cm of new snow arrived in the past 24 hours. Reactive storm slabs can be expected, especially in wind-loaded areas.

Confidence

Moderate

  • We are uncertain due to a highly variable snowpack.

Avalanche Summary

No new avalanches have been reported at the time of publishing. We expect snowfall and wind continuing overnight to be forming fresh, reactive slabs.

Snowpack Summary

Up to 30 cm of new snow has fallen at upper elevations in the past 24 hours. Strong southerly winds will have redistributed this snow into deeper deposits in wind-loaded areas. This new snow overlies a melt-freeze crust on solar aspects and lower elevations, wind-affected surfaces at higher elevations, and facetted snow or patchy surface hoar in sheltered, shaded areas.

A crust from early February can be found down 60 to 120 cm and has shown no recent reactivity.

The remaining snowpack appears to be well settled and bonded.

Weather Summary

Tuesday Night

Cloudy. 10 to 20 cm of snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1500 m.

Wednesday

Cloudy. 1 to 8 cm of snow. 15 to 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1500 m.

Thursday

Mostly cloudy. 30 km/h west ridgetop wind. Treeline temperature -4 °C.

Friday

Mostly cloudy. 5 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -3 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Even brief periods of direct sun could produce natural avalanches.

Régions couvertes