Boletín de aludes

East Slopes Central

Northwest Avalanche Center
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Peligro de aludes

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

Lo esencial

Blowing snow, shooting cracks, and recent slab avalanches are signs that recently drifted snow is unstable. Stick to slopes less than 35 degrees where you find signs of instability and evidence of recent wind-transported snow. It still may be possible to trigger small avalanches in the new snow in wind-sheltered terrain.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2

    Blowing snow and recently sculpted drifts will direct you to areas where you could trigger avalanches. The most dangerous slopes will be at upper elevations. Deeper, older slabs could still be found just below ridgelines and in cross-loaded gullies. A dusting of new snow may cover Saturday's slabs. Feel for stiffer, wind-loaded snow on leeward sides of ridges and wind-exposed features.

    (12/27/2024)

    A small skier triggered wind slab avalanche in the East Central zone. The crown depth is 18 inches (12/27/24).

Avalanche Discussion

Saturday was incredibly windy throughout the zone. The Wenatchee Mountains stayed relatively dry above 4,500ft, while areas near the Cascade crest received significantly more rain. Observers reported rain to 5,000ft and hearing natural avalanches near Teanaway Mtn. At Mission Ridge, winds were extreme above 6,000ft and strong as low as 5,000ft. 

On Friday, observers reported a small, skier-triggered wind slab avalanche in Stemilt Basin that ran on the Solstice Crust. Other reports from Mission Ridge and the Teanaway pointed towards good bonding to the Crust and better stability overall. After this week's windy storms, you could still find older slabs loitering in atypical locations i.e. lower down on slopes and in exposed terrain at lower elevations that have not seen rain and warmth. If you find signs of wind-transported snow, take the time to investigate if the slope is loaded before stepping onto it. If you find cracking and collapsing in more sheltered areas, you have found storm slab instability. Step back from steep slopes if you encounter these signs.

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