Bulletin d’avalanche

Tetons

Bridger-Teton Avalanche Center
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Danger d’avalanche

Mon
Alpin
2 · Modéré
Limite forestière
3 · Marqué
Sous la limite
1 · Faible
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Périmé — ce bulletin a expiré 5 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Temperatures may have cooled overnight but not enough to stop water from moving through the snowpack. Human-triggered, wet snow avalanches will be possible, and even likely on warm, mid-elevation slopes, as temperatures rise again today. Mushy, wet snow is a clear sign to look for cooler conditions with more stable snow.  

Many natural wet slab avalanches, 1-2' feet in depth, have occurred over the past two days, one of which buried a rider in Togwotee.  

Problèmes avalancheux

  • Wet Slabs

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

    Temperatures overnight slowed but did not stop water moving through the snowpack. History shows that a lag exists between the cooling of ambient temperatures and cooling deeper in the snowpack. We aren’t out of the woods yet with regards to wet avalanche activity, but it will look a little different. 

    • Wet loose sluffing in steep terrain is likely and may entrain significant amounts of snow. This is most likely to be a human triggered problem today and can be dangerous. Continue to carefully choose your timing and be aware of changing snow conditions depending on aspect, elevation and other terrain factors.
    • Wet slab avalanches remain a dangerous potential risk. Dense debris may be slow moving but it is hard to escape once you are captured. The overnight freeze has been light and may have left some slopes teetering in the balance between strength and failure as water percolates down to crusts or weak layers. The best avoidance measure is to stay off of and out from under steep slopes.

    (3/22/2026)

    Morning temperatures in the Tetons. The orange denotes above freezing temps.

Avalanche Discussion

Rollerballs are no longer a warning sign since surfaces have become wet grains in most areas. You will see wet surfaces and mushy, rotten snow. Dust patches are speeding up the melting process in many locations and can be particularly wet and sticky.  Time your day carefully and remember that the snowpack barely saw a refreeze last night.  Northerly mid-elevation slopes began to see natural avalanches yesterday with the high thin cloud cover distributing heat more evenly. Similar cloud cover may build in today.

Thanks for submitting your observations. Snap a few photos while you’re out and send them in wither through the website form or even via text. Special thank-you to those who took the time to report the burial that occurred Friday afternoon. These stories make us all safer in the backcountry!

Régions couvertes