Bollettino valanghe

Togwotee Pass

Bridger-Teton Avalanche Center
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Pericolo valanghe

Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
Senza grado
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Non aggiornato — questo bollettino è scaduto 10 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

At the higer elevations skiers and riders could trigger surface slabs in steep, wind-loaded avalanche terrain. These slides are most likely to be encountered near upper elevation ridgelines and beneath cornices where recent winds have transported loose snow onto leeward slopes. Large persistent deep slabs continue to be a threat in terrain above 9,000 feet that held snow from early October, especially for heavier triggers like snow machines. Avalanches are unlikely below an elevation of 8,000 feet.

Problemi valanghivi

  • Deep Persistent Slabs

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

    Backcountry travelers could impact weak, faceted snow near the base of the snowpack in steep north facing terrain above an elevation of 9,000 feet. Large triggers, such as snowmobiles, are more likely to cause failure of this basal weak layer, and previous tracks are not an indication of stability. Large destructive slab avalanches that fail on this deeply buried, persistent weak layer could reach five feet in depth and are likely to be unsurvivable.

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    Steady southwest to west winds have continued to drift snow onto leeward aspects along the higher ridges. Pockets of wind slab one to two feet in depth could be triggered by skiers or riders who venture into steep, wind loaded avalanche starting zones and cliff areas.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Periods of snow will continue overnight and into the day with several inches of additional inches of new snow accumulation likely. Temperatures will remain in the single digits at all elevations. Winds are forecast to be west-southwesterly at 10 to 15 miles per hour.The general avalanche hazard is expected to be MODERATE above an elevation of 8,000 feet and LOW below that elevation. At the upper elevations pockets of wind slab with depths to two feet could be human triggered in steep, wind loaded avalanche starting zones. Deep persistent slabs with depths to six feet continue to be a potential hazard on northerly aspects above an elevation of 9,000 feet. These very dangerous slabs are more likely to be triggered in areas in steep avalanche prone terrain where the snowpack is shallower and by larger triggers such as snow machines.

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