Bulletin d’avalanche

Salt River and Wyoming Ranges

Bridger-Teton Avalanche Center
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Danger d’avalanche

Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Périmé — ce bulletin a expiré 4 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

The avalanche danger is Considerable above 8,000'. New snow, wind and rising temperatures will build slabs likely to be triggered by a skier or rider in steep terrain. Shooting cracks, collapsing and evidence of other avalanches nearby are signals that the snowpack is unstable. Natural avalanches are also possible. Avalanches may involve all of the snow above the crust and will be large enough to easily bury a person.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2

    Wind slabs one to three feet thick exist in the terrain and will grow larger through the day. Look for signs of drifted snow near ridgetops, and on slopes beneath cliff bands. Hollow sounding snow, shooting cracks or pillow-like formations of snow are indicators that drifting snow has formed slabs. Older wind slabs that may remain unstable exist on a variety of aspects due to shifting winds earlier in the week.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1

    In very steep terrain loose snow avalanches will have the potential to gather enough volume to knock skiers and riders over and into terrain traps. These avalanches could gather the 20-30" of snow that has fallen since Sunday. If entering steep terrain, expect snow that was not wind affected to move easily and run long distances.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Snow shower activity should subside for a few hours this evening before another round of moisture arrives. This storm system will favor the southern forecast zone and the Tetons with up to sixteen inches of snow in the mountains. Togwotee will pick up about six inches. Winds during the storm will be from the southwest and west at 20-25 mph with gusts to 35 mph. Temperatures during the storm tomorrow will rise to the mid to upper twenties. Reactive wind and storm slabs will develop through the day tomorrow. The new wind slabs and warming temperatures during the storm make human triggering likely and warrant a Considerable danger rating. Avalanches are also likely to entrain the two feet of snow that has fallen since Monday and sits atop a stout melt-freeze crusts. Expect avalanche danger to diminish to Moderate or Low in areas below 7,500’ that have little in the way of a snowpack.

Régions couvertes