Bollettino valanghe

Tetons

Bridger-Teton Avalanche Center
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Pericolo valanghe

Sat
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 2 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

New snow and wind will form sensitive wind slabs less than 1 foot deep at upper elevations. Pay attention to signs of wind-loading including the formation of pillows and shooting cracks. Ride on wind-sheltered, or lower-elevation terrain to avoid this problem. 

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–1.5

    Today, wind slabs less than 1 foot deep will form in the upper elevations as a storm system brings 3 to 6 inches of new snow and moderate winds. These slabs will grow throughout the day, and be largest in the afternoon. Weakened snow surfaces have developed over the last two weeks, making any new slab formation sensitive to human triggers. Over the past 72 hours, multiple small wind slabs have failed on this weak surface snow with one larger avalanche in heavily wind-loaded terrain.

    As winds shift from the west to the north, expect to find these slabs along ridgelines, in cross-loaded gullies, and on steep convex rollovers on all aspects. Pay attention to signs of wind-loading including the formations of pillows, textured surfaces, or shooting cracks. Moving to terrain sheltered from the wind will help you avoid this problem. 

     

     

     

    (1/22/2025)

    A small windslab from the ridgeline of Taylor Mountain. 

Avalanche Discussion

As new snow and winds arrive today, wind slabs will start to develop especially at upper elevations. These slabs will grow throughout the day, becoming the largest in the late afternoon. It will be important to remain watchful for signs of instability all day as new wind loading may not be obvious until later this afternoon. Additionally, the new snow will likely not bond well to the weak surface snow that has developed over the past 2 weeks. Due to this interface, I'd expect these slabs to become more sensitive as the day progresses. Stay alert today, and enjoy the small refresh of snow. 

Please continue to send in observations - even a picture texted to 307-264-3050 can be very helpful!

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