Bollettino valanghe

Salt River and Wyoming Ranges

Bridger-Teton Avalanche Center
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Pericolo valanghe

Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
3 · Marcato
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Non aggiornato — questo bollettino è scaduto 10 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Mountain temperatures are five to ten degrees warmer than yesterday morning. Above 7,500 feet, skiers and riders entering avalanche terrain could trigger recently developed wind slabs with greatly varying depths. As the day progresses, daytime warming, abundant sunshine and the absence of strong winds will all combine to increase the likelihood of triggering these slides, particularly on sunlit aspects. Afternoon warmth will also bring back the chance for wet slides, and cornice failures will become more likely as well. Monitor the extent to which the surface of the snowpack is warming, and seek out shaded terrain when snow surfaces become damp or crusts begin to break down.

Problemi valanghivi

  • Wind Slabs

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

    The Southwest Trails area has received over seven inches of snow water equivalent during the last storm cycle. Very strong southwesterly to westerly ridgetop winds accompanied this snowfall, and dense wind slabs formed above 7,500 feet. These slabs could fail on density breaks or graupel layers within the recent snowfall. Faceted snow from January can also be found in some areas. This scenario results in slab depths ranging anywhere from six inches to four or five feet. Daytime warming will increase the likelihood of triggering these slides, and natural activity could become possible in the afternoon.

  • Wet Slabs

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

    Cold temperatures overnight have removed the threat of wet slides this morning. Once surface crusts break down, the chance to trigger wet slabs and wet loose sluffs could return at the mid and lower elevations.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Skies will be mostly clear as a ridge of high pressure remains over the region. Overnight lows in the mountains will be near 10 degrees before rising into the upper 20s during the day. Valley temperatures will dip below zero by sunrise before rebounding to near freezing in the afternoon. Ridgetop winds will veer to the north at 5 to 15 miles per hour.The general avalanche hazard is expected to be Considerable on Monday. Backcountry travelers entering steep avalanche terrain could trigger wind slabs on a variety of aspects above 7,500 feet. These slabs could fail on density breaks within the recent snowfall or down to graupel layers that fell during the previous storm cycle. This scenario results in slab depths ranging anywhere from six inches to four or five feet. As the day warms, these slides will become more susceptible to failure, especially on sunlit aspects. Afternoon warmth will also bring back the chance for wet slides, and cornice failures will become more likely as well. In the Togwotee Pass area, a chance lingers to trigger full depth avalanches on northerly aspects above 9,000 feet.

Regioni coperte