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Out of date — this forecast expired 13 years ago. You’re viewing past conditions, not the current bulletin.

Highlights

The general avalanche hazard is MODERATE above an elevation of 7,500 feet and LOW below that elevation. At the mid and upper elevations slab avalanches up to three feet in depth could be human triggered in steep, wind loaded avalanche starting zones. On steep northerly aspects above an elevation of 9,000 feet these slabs could step down to the ground. Avalanches are unlikely at the lower elevations.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2

    Recent northwest winds have formed pockets of dense wind slab up to two feet in depth. In addition dense wind slabs up to three feet in depth remain from last weeks storm. In some areas these older slabs lie upon buried layers of faceted snow that formed in late November. Humans, especially those on snowmobiles could trigger these slabs. If these surface slabs are triggered on steep northerly aspects above an elevation of 9,000 feet they could step down to the ground.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    3

    Weak faceted snow exists at the base of the snow pack on shaded aspects above an elevation of 9,000 feet. Some potential persists for humans, especially those on snowmachines to trigger dangerous hard slab avalanches to the ground on this weak persistent layer. Previous tracks should not be interpreted as a sign of stability.

Avalanche Discussion

( Discussion is generated from the previous day's afternoon forecast. )Two Alberta Clipper type weather systems will drop southward to our east from Canada towards the plains in a northwesterly flow. These fast moving systems will provide some reinforcing cold air before temperatures begin to slowly moderate on Wednesday. On Tuesday skies will be mostly cloudy with a chance of light snowfall or flurries. Temperatures will be in the single digits below zero in the mountains and in the single digits above zero in the valleys. Winds will be westerly at 15 to 25 miles per hour. The general avalanche hazard is expected to be MODERATE at the mid and upper elevations (7,500 to 10,500 feet) and LOW at the lower elevations. Slab avalanches one to three feet in depth could be human triggered in steep wind loaded avalanche paths and are likely to be more sensitive to larger triggers like snowmachines. On steep northerly aspects above an elevation of 9,000 feet these slabs could step down to the ground. Avalanches are unlikely at the lower elevations.

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