Bulletin d’avalanche

Salt River and Wyoming Ranges

Bridger-Teton Avalanche Center
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Danger d’avalanche

Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
2 · Modéré
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. This lowering of the hazard from Considerable yesterday only indicates that avalanches will be slightly harder to initiate and therefore even more difficult to predict. Slopes may still fail to a single rider or skier even after a slope is tracked when a thin weak spot is impacted. Surface slab depths could reach four feet and on north facing slopes full depth slides with depths to five feet could occur. Human involvement in any avalanche activity could result in serious injury or death.

Problèmes avalancheux

  • Wind Slabs

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

    Dense surface slabs up to four feet in depth lie upon slick old snow surfaces and faceted snow. These dangerous slabs could be triggered on a variety of aspects by a single rider or skier and will be more sensitive to larger loads such as snowmobiles. On steep northerly aspects above 9,000 feet these slabs could step down to the ground.

  • Deep Persistent Slabs

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

    Above 9000 feet on northerly aspects, weak snow persists at the base of the snowpack. In this terrain very dangerous hard slabs could be triggered by the weight of a single person, a snowmobile or by the release of a wind slab avalanche. These dangerous slabs could have crown depths to five feet and if triggered are likely to carry severe consequences.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Increased moisture in cold flow could produce periods of light snowfall overnight and Saturday. Temperatures on Saturday should raise into the positive single digits during the afternoon.The general avalanche hazard is Moderate. This decreasing in the rating DOES NOT indicate a significant change in stability. Slabs have gained strength making them slightly harder to trigger and significantly harder to predict. Backcountry travelers still have the potential to trigger hard slabs to four feet in depth in wind loaded avalanche terrain above 7500 feet. On North facing slopes above 9000 feet these slabs could step down to weak snow at the base of the snowpack to total depths of five feet.

Régions couvertes