Avalanche forecast

Togwotee Pass

Bridger-Teton Avalanche Center
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Avalanche danger

Alpine
2 · Moderate
Treeline
1 · Low
Below
No rating
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Out of date — this forecast expired 10 years ago. You’re viewing past conditions, not the current bulletin.

Highlights

At the higher elevations skiers and riders could trigger surface slabs in steep, wind-loaded avalanche terrain and cliff areas. These slides are most likely to be encountered near upper elevation ridgelines and beneath cornices where winds continue to drift snow onto leeward slopes. Large persistent deep slabs continue to be a serious threat in terrain above 9,000 feet that held snow from early October. Avalanches are unlikely below an elevation of 8,500 feet.

Avalanche problems

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3

    Persistent deep slabs could be human triggered in steep avalanche prone terrain above an elevation of 9,000 feet that faces north. A single person on skis could release of one of these large slab avalanches, however they are more likely to be triggered by snowmobiles. Previous tracks are not an indication of stability. These dangerous slabs could be up to to five feet deep. The potential for a person to survive being caught in one of these large destructive slab avalanches is low.

  • Wind Slabs

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

    Southwest to west winds have continued to drift snow onto leeward aspects along the higher ridges. Pockets of wind slab up to two feet in depth could be triggered by humans who venture into steep, wind loaded avalanche starting zones and cliff areas.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Moderate to heavy snowfall is expected late tonight through Wednesday night in the Salt River Range, Wyoming Range and over the mountainous areas of southeast Idaho. Lesser amounts are forecast for the Teton and Togwotee Pass areas. Total snowfall accumulations by Thursday morning are expected to be 10 to 16 inches in the Greys River area and 5 to 10 inches in the Teton and Togwotee Pass areas. Temperatures will remain in the single digits above and below zero. Southwest winds will veer to the northeast during the day and be light with average speeds of 10 to 20 miles per hour. The general avalanche hazard is expected to be MODERATE and increasing, especially in the Greys River forecast area where it could increase to CONSIDERABLE. Soft surface slabs up to two feet in depth and loose snow sluffs could be human triggered in steep terrain. Deep persistent slabs with depths to six feet could be human triggered in steep north facing avalanche prone terrain above an elevation of 9,000 feet. These dangerous deep slabs are more susceptible to heavy triggers like snow machines.

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