Bulletin d’avalanche

Northern San Juan

Colorado Avalanche Information Center
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Danger d’avalanche

Fri
Sat
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Périmé — ce bulletin a expiré last year. Vous consultez des conditions passées, pas le bulletin en cours.

Problèmes avalancheux

  • Storm Slabs

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

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3

Avalanche Summary

An Avalanche Watch is in effect for the northern San Juan Mountains. HIGH (4 of 5) avalanche danger will develop late Thursday and last into Friday as a potent storm brings strong winds and heavy snowfall.

You can trigger an avalanche where new snow has formed cohesive slabs over weak layers. Avalanches could be larger where winds have drifted snow into deeper slabs on lee slopes. Avoid steep slopes where you observe 8 inches or more of drifted snow. Cracking in the snow surface, collapsing, or avalanches on similar slopes are obvious signs of instability and a good indication of areas to avoid.

On west-to-northwest through east-facing slopes, avalanches in the new snow could step down, triggering a slide that could break deeper and wider.

You can find safer travel on slopes less than 30 degrees and areas protected from the wind.

Régions couvertes