Bollettino valanghe

Tetons

Bridger-Teton Avalanche Center
Vedi sulla mappa

Pericolo valanghe

Alta quota
3 · Marcato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
Open full map
Non aggiornato — questo bollettino è scaduto 8 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

The west slope of the Tetons has received 30 inches of new snow in the past 24 hours and about 55 inches since Thursday afternoon. The east side received 10 inches overnight and 32 inches since Thursday afternoon. Winds were from the south and southwest during the first two days of this storm cycle. They veered to the west yesterday and to the northwest overnight. Skiers and riders could trigger dense wind slabs on steep avalanche prone slopes. The recent load has increased the potential for dangerous deep slab avalanches to be triggered on deeply buried persistent weak layers that formed earlier in the season. Avalanches are unlikely at the lower elevations except on isolated terrain features.

Problemi valanghivi

  • Deep Persistent Slabs

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

    Two to three inches of moisture has been added to the snowpack since Thursday. Backcountry travelers could trigger persistent deep slab avalanches with depths up to five feet in some areas above 7,500 feet. These low probability/high consequence avalanches are more likely to be triggered where faceted snow from December resides less than four feet below the snow surface. Large triggers, such as snowmobiles or cornice failures, are more likely to trigger one of these dangerous hard slab avalanches.

  • Wind Slabs

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

    Dense wind slabs 1 to 4 feet in depth could be triggered today by skiers or riders who venture into steep, wind loaded avalanches starting zones, cliff areas and steep couloirs. Once triggered these slides could entrain large volumes of new snow.

Avalanche Discussion

Snow showers are likely overnight and could bring 1 to 3 inches of new snow to the higher elevations. Skies will become mostly sunny on Tuesday under a building high pressure ridge. Temperatures will rise into the 20s from overnight lows in the single digits. Winds will be light from the west to west-southwest at 5 to 10 miles per hour.Tomorrow’s sunshine and warming temperatures will impact the new snow that fell during the last several days. That sunshine and warming will increase the potential for loose snow avalanches on steep sunlit aspects and for wind slab avalanches to be human triggered or release naturally. Persistent deep slab avalanches with depths to five feet are also a potential hazard as deeply buried weak layers will be struggling to adjust to the recent load and snow creep that will be occurring on steep slopes during this warm up event. The general avalanche hazard is expected to increase to CONSIDERABLE in the mountains of western Wyoming.

Regioni coperte