Bulletin d’avalanche

Northern San Juan

Colorado Avalanche Information Center
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Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
Périmé — ce bulletin a expiré 2 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
  • Persistent Slabs

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

Avalanche Summary

An increase in westerly winds will be drifting recent snowfall into stiffer slabs on leeward slopes and in cross-loaded gullies above treeline. It will be easier to trigger an avalanche on slopes around 35 degrees or steeper. Places where you find around 10 inches of wind-drifted snow should be assessed cautiously before committing – especially if the snow surface looks smooth or rounded. Adjust your travels to lower-angle slopes protected from the wind if you see cracking in the snow, or the snow surface transitions from soft to stiff. Even a small, isolated avalanche can lead to a rough ride or unfortunate outcome in the wrong terrain.

Triggering a deeper breaking avalanche has become less likely, but is still a lingering potential in shallow areas on steeper slopes. These low-probability avalanches can be consequential in more complex or extreme terrain. Shallow, trigger spots lurk near rock outcroppings, on steep rollovers, and in wind-exposed areas below ridges and cliffs.

Régions couvertes