Avalanche forecast

Togwotee Pass

Bridger-Teton Avalanche Center
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Avalanche danger

Alpine
2 · Moderate
Treeline
2 · Moderate
Below
No rating
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Out of date — this forecast expired 6 years ago. You’re viewing past conditions, not the current bulletin.

Highlights

Skiers and riders could trigger small to large, newly developed wind slabs in steep terrain above 8,000 feet. As the day warms, these slabs will become more susceptible to failure, especially if periods of sunshine occur in the afternoon. Low elevation temperatures dipped to near freezing overnight and are expected to rise into the low 40s during the day. The possibility for wet slides will increase with daytime warming starting at the lower elevations and moving up in elevation as the day progresses. Afternoon sunshine could rapidly increase this hazard. Get an early start, keep an eye on temperatures and solar input, and have a plan to safely descend before warming conditions affect the snowpack.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2

    Since Saturday morning, storm totals range from 10 to 16 inches of new snow in the mountains. Southerly to southwesterly ridgetop winds between 10 and 20 miles per hour accompanied this snowfall, and one to two foot deep wind slabs developed in leeward terrain. These slabs formed on a variety of snow surfaces which include crusts, wind pack and settled snow. Skiers and riders could trigger these slabs on old snow surfaces or within density breaks, and the chance for failure will increase with daytime warming.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2

    Daytime warming will also bring about the chance for wet loose and possibly wet slab avalanches. These slides will involve the new snow and possibly break into older snow at the lower elevations. Long, sustained couloirs could entrain significant amounts of snow and should be avoided.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Periods of light to moderate snowfall will be possible overnight in the northern portion of the forecast zone before dissipating during the day on Monday. Skies may begin to clear in the afternoon. Overnight lows in the mountains will be in the low 20s before climbing into the mid-30s during the day. The valleys may drop below freezing tonight before rising into the low 40s in the afternoon. Southwesterly ridgetop winds will decrease to 5 to 15 miles per hour.The general avalanche hazard is expected to be Considerable above 9,000 feet in the Tetons and Moderate elsewhere. Temperatures and sunshine will be the two primary factors for the avalanche hazard on Monday. In steep avalanche terrain where the highest snowfall amounts occurred, skiers and riders could trigger newly developed wind slabs with depths from one to three feet. Small pockets of human triggered slab will be possible on steep slopes that only received modest amounts of snowfall. As the day warms, these slabs will become more susceptible to failure, especially if skies clear in the afternoon. Wet slides will also become a concern as the day heats up. Evaluate the amount of new snow in the terrain through which you’re traveling, and monitor warming conditions and solar input.

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