Bollettino valanghe

Tetons

Bridger-Teton Avalanche Center
Vedi sulla mappa

Pericolo valanghe

Alta quota
4 · Forte
Limite del bosco
4 · Forte
Sotto il limite
4 · Forte
Open full map
Non aggiornato — questo bollettino è scaduto 7 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

An avalanche warning is in effect. Avalanche conditions are very dangerous. Large to very large natural avalanche events are likely on a variety of aspects. Widespread natural avalanche activity is possible. Travel in avalanche terrain is not recommended. Teton County Search & Rescue volunteers are currently in the process of responding to a backcountry incident that is non-avalanche related. Rescue resources are limited and hampered by road closures and poor road and flight conditions. Grand Teton National Park has issued the following statement.....Due to staff involvement in current road closure and winter storm related incidents within the park, elevated avalanche danger, potential risk to rescuers, and forecasted weather, the superintendent of Grand Teton National Park has requested an emergency closure of the gates that access Grand Teton National Park from the Jackson Hole Mountain Resort until further notice.

Problemi valanghivi

  • Wind Slabs

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

    Up to four feet of snow with 3.5 inches of moisture has fallen since Saturday evening. Strong southwest winds have created dense wind slabs comprised of this storm snow on leeward aspects. These slabs could be up to six feet deep at the higher elevations and up to two feet deep at the lower elevations. Natural releases of these slabs are likely. Human triggered slab avalanches are very likely. These slides could run full track. Avalanche run out zones should be avoided.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    3–4

    Up to three and a half inches of snow water equivalent has been added to persistent weak layers of faceted snow deep in the snowpack. Very large to historic size deep slab avalanche releases are possible on these persistent weak layers. These very dangerous avalanches could run long distances into mature forest, valley floors and flat terrain. These destructive slabs could be up to 8 to 16 feet deep at the highest elevations and 3 to 5 feet deep at the lower elevations.

Avalanche Discussion

Snow is forecast to continue overnight and through Wednesday in the mountains. The valleys will see a slight lull until midday. New snowfall amounts of 1 to 2 feet are possible in the Teton Range. Six to 12 inches are likely in the higher elevations of the Togwotee Pass and Southwest Trails areas. Up to eight inches are possible in the valleys. Temperatures will be in the 20s in the mountains and in the upper 20s and to mid-30s in the valleys. Winds will be from the southwest at 25 to 30 with gusts to 40 miles per hour.An avalanche warning is in effect until 6 AM on Wednesday morning for the mountains of western Wyoming including the Teton Range, Gros Ventre Range, Yellowstone National Park, Snake River Range, Salt River Range, Wyoming Range, Absaroka Range, Togwotee Pass area and the valley of Jackson Hole. This avalanche warning will be re-evaluated at 5 AM. It is anticipated it will be extended until 6AM on Thursday morning. Very dangerous avalanche conditions exist in all our forecast zones. The general avalanche hazard is expected to be high at all elevations. Travel in avalanche terrain is not recommended. Natural avalanche activity is likely on a variety of aspects and could become widespread. Natural and human triggered avalanches could be very large and run full track. Impacts to roadways on Teton Pass are likely. Large to very large avalanches and wet slides could impact the roads in the Hoback and Snake River Canyons.

Regioni coperte