Bulletin d’avalanche

Togwotee Pass

Bridger-Teton Avalanche Center
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Danger d’avalanche

Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
Sans niveau
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Périmé — ce bulletin a expiré 13 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

The general avalanche hazard is MODERATE. In north facing terrain above 9000 feet, skiers and riders could trigger slab avalanches with depths to three feet that lie upon persistent weak snow at the base of the snowpack. Backcountry travelers could also trigger wind slabs formed earlier in the week with depths up to 18 inches in steep, wind loaded terrain. Once initiated, these surface slabs could step down to the basal weak layer. The general avalanche hazard is LOW below 9,000 feet and avalanches are unlikely.

Problèmes avalancheux

  • Persistent Slabs

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

    Weak, faceted snow persists at the base of the snow pack on northerly and shaded aspects above an elevation of 9,000 feet. Skiers and riders have the potential to trigger slab avalanches on this layer with depths to three feet. The strength of this layer is hard to predict and failure may occur after a slope is crossed several times or from the initiation of a smaller surface slab.

  • Wind Slabs

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

    At the upper elevations surface slabs up to 18 inches deep could be human triggered in steep wind loaded avalanche starting zones. On steep northerly aspects these slabs could step down to the persistent weak layer of faceted snow near the base of the snow pack.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. ) A high pressure system will continue to dominate our weather through the week with generally light winds. On Tuesday skies will be mostly clear. Temperatures in the mountains will rise into the 20s and 30s. Winds will be west to northwest at 5 to 10 miles per hour.Mostly stable snow exists except on steep northerly aspects above an elevation of 9,000 feet. Skiers or riders who venture into avalanche terrain on northerly or shaded aspects at the upper elevations could trigger slab avalanches one to three feet in depth. Previous tracks are not an indication of stability. The general avalanche hazard is MODERATE at the upper elevations and LOW below an elevation of 9,000 feet.

Régions couvertes