Bollettino valanghe

Togwotee Pass

Bridger-Teton Avalanche Center
Vedi sulla mappa

Pericolo valanghe

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

In sintesi

Skiers and riders have the potential to trigger surface slabs in steep, wind-loaded avalanche terrain and cliff areas at the higher elevations. These slides are most likely to be encountered near ridge crests and beneath cornices or cliffs where winds continue to drift snow onto leeward slopes. Large persistent deep slabs continue to be a serious threat in terrain above 9,000 feet that held early season weak snow and crusts. Avalanches are unlikely below an elevation of 8,500 feet.

Problemi valanghivi

  • Deep Persistent Slabs

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

    Large to very large slab avalanches that lie on deeply buried weak snow layers could be human triggered in steep northerly facing avalanche prone terrain above 9,000 feet. A single person on skis could still cause their release, however they are more likely to be triggered by bigger loads, such as snowmobiles. Previous tracks are not an indication of stability. These dangerous avalanches could could have crown depths to five feet. The likelihood of a person surviving one of these large destructive slab avalanches is low.

  • Wind Slabs

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

    At the upper elevations soft slabs could be triggered with depths to eighteen inches in steep wind loaded terrain. Winds veered from the southwest to northwest during the recent snowfall and have continued to veer to the northeast overnight.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )As the storm track is pushed further south, snow will end overnight. By morning skies will be mostly clear to clear and temperatures will drop further as the cold front takes over. Morning temperatures are to be near minus twenty Fahrenheit in the valleys and minus ten at higher elevations. As daily warming occurs, highs near ten are expected at all elevations. Winds will vary from the north to east with ten to fifteen mile per hour averages during the day. The avalanche hazard will be Considerable in the Southwest Trails/Greys River area. In the Teton and Togwotee Pass areas it will be Moderate above 9000 feet and Low below that elevation. Soft wind slabs will exist in all areas but be most sensitive and larger in the southern zone with depths that could exceed two feet. Very large avalanches involving the deep persistent weak layer near the base of the snowpack on high northerly aspects could still be human triggered in all areas. The chance of doing so is more likely in the generally weaker snowpack on Togwotee Pass area and in Southwest Trails area where slopes have just been rapidly loaded. An event involving this layer is unlikely in Tetons but could still occur in isolated areas.

Regioni coperte