Bollettino valanghe

Tetons

Bridger-Teton Avalanche Center
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Pericolo valanghe

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

In sintesi

Heavy snowfall at the highest elevations, rain in the valleys and strong winds are increasing the avalanche hazard. At the upper elevations dense wind slabs could be triggered by the weight of a single person on steep wind loaded slopes. Wet slides are likely at the lower elevations and possible at the mid elevations. These slides could gouge down to the ground. Roof slides are still a concern. Evaluate terrain and conditions carefully.

Problemi valanghivi

  • Wind Slabs

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

    At the upper elevations strong southwest winds have formed dense wind slabs on leeward aspects. On steep slopes these slabs could be triggered by humans. These slabs could be up to two feet deep and will be gaining depth and may become more sensitive to failure as temperatures increase and additional snow loading occurs. These avalanches will be big enough to cause serious injury and bury people.

  • Wet Slabs

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

    Temperatures that have been above freezing for several days and rain have increased the wet snow avalanche hazard. Dangerous wet loose and wet slab avalanches could release naturally on steep slopes, in gullies and in active avalanche paths. Wet slides that released naturally in Hoback Canyon yesterday dug down to the ground and entrained soil and trees. Similar events are likely today. Expert terrain assessment and route finding skills are essential for safe travel in avalanche terrain.

Avalanche Discussion

Rain and snow showers are forecast to become less numerous overnight. The snow/rain line will descend to the valley floors by morning as colder air moves into the region. Skies will be mostly cloudy on Wednesday. Snow showers are likely over the mountains. Temperatures will be in the teens and 20s in the mountains and in the 20s and 30s in the valleys. Winds will veer from the west to the north at 10 to 20 with gusts to 35 miles per hour. The general avalanche hazard is expected to be moderate. At the upper elevations humans could trigger slab avalanches that involve the dense new snow in steep wind loaded avalanche starting zones. These slabs could be one to two feet deep. At the lower elevations the wet snow avalanche hazard will decrease be still be a concern on steep terrain features.

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