Bollettino valanghe

West Slopes Central

Northwest Avalanche Center
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Pericolo valanghe

Wed
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
2 · Moderato
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Non aggiornato — questo bollettino è scaduto 4 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Avalanche danger will increase throughout the day as snow continues to fall. You may be able to start your day accessing most terrain, but as new snow depths start reaching six inches or more, shift your travels to lower-angle slopes to avoid triggering and getting caught in dangerous avalanches. 

Problemi valanghivi

  • Storm Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1.5–2

    Avalanche danger will increase as more snow falls. When snow depths reach about six inches or more, it's time to shift your travel to lower-angle terrain.

    Above about 5000ft, there could be a firm crust that the new snow layer slides easily on, making it easier for you to trigger avalanches. Although avalanches could happen anywhere steep where new snow amounts to about six inches or deeper, they could be larger and easier to trigger in wind-loaded terrain. 

    When in doubt, stick to lower-angle terrain on Tuesday. 

    (3/17/2025)

    You could trigger dangerous avalanches on steep slopes in areas where there is about 6 or more inches of new snow. These are storm slabs I triggered in the West Central zone last year, when we had similar new snow amounts to what we're getting on Tuesday. 

    Photo: Irene Henninger

Avalanche Discussion

It's back to winter after an enticing couple of weeks with spring conditions. Now, dry snow problems are the main concern. By the end of the day, we could have 6-10 inches of snow with moderate winds, and danger will further increase overnight, when another 8-10 inches of snow could fall. Temperatures are expected to stay cool, keeping the snow dry at most elevations, as a nice change.

Beneath the new snow layer, expect rough, crusty surfaces. This hard, frozen layer is sitting over large, moist grains that exist all the way to the ground across most aspects and elevations. The old snow layer may still have a soft surface at lower elevations. The snow could be punchy. Here, small rollerballs may run in any new snow that accumulates where temperatures are flirting with the freezing line. Also beware of plenty of irregularities, cracks, and holes in the snowpack that has been subjected to plenty of melting over the past couple of weeks. 

New snow amounts and avalanche danger could vary across the zone. If we get less snow than forecasts are calling for, then the avalanche danger could be lower. 

Regioni coperte