Bollettino valanghe

Togwotee Pass

Bridger-Teton Avalanche Center
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Pericolo valanghe

Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
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

The National Weather Service has issued a Winter Storm Warning through 11 AM on Tuesday. Strong winds and moderate to heavy snowfall will create new wind slabs forming on dense snow and graupel. In steep, wind-loaded terrain, skiers and riders could trigger these slabs along with deeper wind slabs that formed over the past few days. Weak layers of faceted snow that formed in January can be found deeper in the snowpack, and slab avalanches could initiate on or step down to these layers. Deep hard slabs are also a concern on high, north facing terrain. Monitor weather conditions, and avoid terrain that is being rapidly wind-loaded.

Problemi valanghivi

  • Wind Slabs

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

    Moderate to heavy snowfall, along with increasing southwesterly ridgetop winds, will create new wind slabs in leeward terrain. As the day progresses, the hazard will increase as these slabs gain depth and volume. Skiers and riders venturing into steep, wind-loaded avalanche terrain could trigger these slabs with depths of 6 to 12 inches along with recently formed wind slabs ranging from one to three feet deep. Natural avalanche activity will also be possible.

  • Deep Persistent Slabs

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

    The chance continues for backcountry travelers, especially those on snow machines, to trigger very large deep slab avalanches on northerly aspects above an elevation of 9,000 feet. If triggered, these dangerous hard slabs could involve the full depth of the snowpack.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )The National Weather Service has issued a Winter Storm Warning beginning midnight on Sunday through 11 AM on Tuesday. Light snow showers will develop overnight before snowfall intensity increases during the day. Overnight lows in the mountains will be in the mid teens before rising into the low 20s in the afternoon. Southerly to southwesterly ridgetop winds will increase to 30 to 40 miles per hour.The general avalanche hazard is expected to be Considerable Monday morning and will increase during the day as high winds and snowfall create new wind slabs. These slabs, which could reach depths of a foot by Monday evening, will form on dense snow and graupel. Weak layers of faceted snow that formed in January are common below these slabs, and avalanches could initiate on or step down to these layers. The chance of triggering full depth avalanches lingers on northerly aspects above 9,000 feet in the Togwotee Pass and Greys River forecast zones.

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