Bulletin d’avalanche

Central Cascades

Central Oregon Avalanche Center
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Danger d’avalanche

Thu
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
1 · Faible
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Périmé — ce bulletin a expiré 4 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Avalanches will be possible on steep slopes that catch wind-blown snow.  The size of these avalanches will increase throughout the day as more snow falls.  Be wary of steep east facing slopes near and above treeline.

Problèmes avalancheux

  • Wind Slabs

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

    With wintry weather come those avalanche problems that we associate with mid-winter.  New snow and Moderate winds will create wind slabs on east facing slopes and possibly north and south slopes as well, depending on terrain.  Wind Slab avalanches are most likely below ridge tops or other features that catch wind-blown snow.  The potential size and danger from these avalanches will increase throughout the day as more snow falls, and is blown into start zones.  On Wednesday morning, riders might be seeking out deeper deposits of fresh snow, but these same lee slopes may become dangerous later in the day.  We often cite the statistic that wind blown snow can be 3–5 times as deep as the snow that has fallen in sheltered meadows. 

    Wednesday will be a good day to assess this avalanche problem on smaller test slopes or slopes less than 30 degrees.

Avalanche Discussion

The last couple of days have been warm, and I've traveled through a lot of very wet, sticky snow.  On both days I was pleased and surprised to find pleasant riding at higher elevations (it just goes to show that it's usually worth going out!).  I haven't seen any recent avalanche activity.  Cooler temperatures and snowfall will be a welcome change even if they are short-lived!

Régions couvertes