Avalanche forecast

Tetons

Bridger-Teton Avalanche Center
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Avalanche danger

Thu
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Out of date — this forecast expired 2 years ago. You’re viewing past conditions, not the current bulletin.

Highlights

Look out for isolated, unstable wind slabs near ridgetops, cliffs and in steep couloirs.  Continue to evaluate these terrain features for signs of instability. Triggering an avalanche in terrain unaffected by wind is unlikely.

Avalanche problems

  • Wind Slabs

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

    Night before last wind gusts from the north-northwest reached 45mph and moved very light density snow around.  You'll find wind slabs and signs of scouring in exposed areas at upper eevations as well as in chokes and aprons in steep gullies. These slabs are likely to be stubborn but may be up to a foot and a half thick  in some places. 

    A chart of reported avalanches occuring in the past week in the Tetons with the same avalanche shown twice. The trend is clear. 

Avalanche Discussion

The weak layers buried in mid and late December are preserved in the snowpack on northerly aspects. These layers appear to be dormant at this time in most locations. Unstable snow could potentially be found on isolated terrain features but would take a large trigger or exceptionally bad luck to find and trigger.  In other forecast zones these old layers remain a more widespread concern. 

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