Bollettino valanghe

Salt River and Wyoming Ranges

Bridger-Teton Avalanche Center
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Pericolo valanghe

Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 7 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Weak faceted snow formed near the ground during dry periods In October and November in terrain above 8000 feet, . Avalanches involving this weak snow have been occurring ever since a series of snow storms starting loading it in late November. Conditions remain dangerous. Yesterday a snowboarder triggered a slab avalanche from a remote distance near the Pinedale Traverse, south of the Jackson Hole Mountain Resort. These unstable slabs are becoming slightly less sensitive which will make slope evaluation even more difficult. Slopes that were obviously weak and failing upon approach may have gained just enough strength to lure people out onto the starting zones before failing. Caution is advised in steep avalanche terrain above 8000 feet. Avalanches at lower elevations are unlikely today.

Problemi valanghivi

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    2–3

    Dangerous persistent slab avalanches 2 to 4 feet in depth can be easily triggered above 8000 feet by the weight of a single person. These slabs lie over weak basal facets and are most likely to be found on west to north to east facing slopes from 8000-9000 feet and all aspects at higher elevations. These slabs could be triggered during approach to steep terrain or while in an avalanche starting zone, even after the slope has been previously tracked.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Tuesday looks to be cold and dry as high pressure continues to build over the area. Temperatures are expected to be below zero at all elevations in the morning, with highs in the teens to low twenties. Skies are to be partly to mostly cloudy. The general avalanche hazard will continue to be Considerable above 8000 feet and Low below that elevation. Persistent weak layers could fail to the presence of a single person, resulting in slab avalanches to depths of three feet. As these slabs become slightly less sensitive they may not release until a skier or rider is committed onto the avalanche slope. Avalanches below 8000 feet are not expected.

Regioni coperte