Boletín de aludes

Stevens Pass

Northwest Avalanche Center
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Peligro de aludes

Sun
Alta montaña
2 · Moderado
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
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Desactualizado: este boletín caducó 2 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

You may be able to trigger small wind slab avalanches above 6,000ft. You can see rollerballs and small wet avalanches if the sun comes out. Expect another day of cool temperatures and light precipitation with some breaks in the clouds and enough wind to transport snow. 

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1

    You may be able to trigger avalanches in shallow drifts of snow on leeward sides of ridges. Watch for blowing snow and shooting cracks as clues to the danger. The freshly drifted slabs will likely be resting on or just above a crust. Use small test slopes to check how well the new snow is bonded to older snow.

    You might find moist snow and rollerballs on sun-exposed slopes if the sun comes out. We don't expect that there will be enough sun or snow available for this to be a significant hazard.

    (2/27/2024)

    Wind features formed from west wind on a mid-elevation ridge.

    Lanham Creek, 5,500ft

    Photo: Josh Hirshberg

Avalanche Discussion

Saturday will repeat similar weather to the last few days. Temperatures will remain cool with light precipitation. There could be some sunbreaks, especially in the morning. Westerly winds should be strong enough for wind transport at upper elevations.

You can find 2-8" of recent snow over a crust that is still growing in thickness. Cooling temperatures have helped the upper snowpack freeze to the point that there's no layers of concern below the surface snow. On Thursday, observers at mid- and low elevations reported a pencil-hard crust in the top 3-4" of the snowpack with moist snow beneath. 

Wet avalanches occurred on many slopes last weekend due to the sun and warming temperatures. Steep sun-exposed slopes up to mid-elevations have seen water throughout much of the snowpack. While temperatures have dropped, the snowpack may need some time to freeze solidly.

Your avalanche, snowpack, or weather observations are extremely valuable to the avalanche community. Help create a more accurate avalanche forecast by submitting your observations HERE. 

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