Bulletin d’avalanche

Togwotee Pass

Bridger-Teton Avalanche Center
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Danger d’avalanche

Sun
Alpin
2 · Modéré
Limite forestière
2 · Modéré
Sous la limite
Sans niveau
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Périmé — ce bulletin a expiré last year. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

The threat of wet avalanches will increase as sunny skies destabilize recent snow on steep slopes facing the sun. Watch for isolated wind slabs up to 1 foot thick on southerly aspects on upper elevation terrain. Pay attention to signs of heating, and move away from steep slopes where the new snow is becoming wet. 

We will issue our last daily avalanche forecast on Sunday, April 20th, and transition to issuing General Avalanche Information Bulletins twice per week or as needed based on weather conditions.

Problèmes avalancheux

  • Loose Wet

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

    The chance of wet loose avalanches will increase as the day progresses. With clear sunny skies through early afternoon, the 4 - 7 inches of new snow will quickly destabilize. Cold temperatures overnight will help delay the heating, but strong April sun will increase the threat of natural and human-triggered wet avalanches on solar aspects. Avalanches will be more likely on terrain surrounded by rocks that heat the surrounding snow surfaces. Move off steep solar slopes if you start seeing signs of warming, such as roller balls or very small loose snow avalanches. 

    (4/6/2025)

    Large D2.5-R2 wet loose avalanche that likely occurred during the past warming cycle in April. 

    Photo: Bridger-Teton Avalanche Center

  • Wind Slabs

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

    Over the past 48 hours, 4-7 inches of new snow have fallen at Togwotee. Yesterday, new snow and moderate northwest/northeast winds built slabs up to 1 foot deep on the south half of the compass, primarily on upper elevation terrain. It will be possible to trigger an avalanche on very steep (>35º) terrain features where winds have transported new snow onto slick crusts. You're most likely to find these slabs on terrain exposed to the wind, such as steep ridgelines and couloir entrances. Look for signs of wind transport on leeward terrain such as fresh cornices and stiffened or cracking snow surfaces. Warmer temperatures and direct sunlight could increase the sensitivity of these avalanches today. 

Avalanche Discussion

Thank you to everyone who helped make this winter so enjoyable. We couldn’t do this without all the detailed observations and willingness to share your experiences with avalanches. Our observation and website will remain operational as we transition to General Bulletins next week. We will also continue to update our 24 Hour Data Summary (Big Sheet) on a daily basis in the later morning hours. Cheers!

Human Factor 2.0 Backcountry Recreation Survey: For years, the avalanche community has worked to understand and address the human factors that influence decision-making in the backcountry.  A current project involves interviewing backcountry recreationalists traveling in avalanche terrain for at least one season. All participants will be entered to win some great raffle prizes (from Jones Snowboards, BCA, and more)!

Please take 1-2 minutes to complete our basic survey. 

Régions couvertes