Bollettino valanghe

East Slopes South

Northwest Avalanche Center
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Pericolo valanghe

Wed
Alta quota
1 · Debole
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 5 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Another sunny, spring-like day will bring little change to conditions. Monitor snow surfaces as they thaw throughout the day. You may be able to trigger small wet avalanches in steep rocky terrain by the afternoon.

Problemi valanghivi

  • Loose Wet

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

    You’re most likely to find wet snow on steep sunny slopes with rocks and cliffs where the snowpack is shallower. A quick way to check for loose wet avalanches is by using your boot. When you sink into wet snow past your ankle start anticipating loose wet avalanches on nearby slopes. While these slides should remain small and localized to just a few features, don’t let them catch you by surprise and push you into a terrain trap. Even a small avalanche can hurt you if it carries you over a cliff or buries you deeply in a gully.

    (2/5/2022)

    NWAC forecasters in the nearby White Pass area were able to push wet surface snow on steep, sunny slopes in the afternoon.

    Photo: Dallas Glass

Avalanche Discussion

From January 30 to February 2, storms deposited 8-12 inches of snow over variable surfaces in the East South Zone. Strong ridgeline winds redistributed this last snowfall into dense slabs, scoured westerly aspects, and created stiff, wind-pressed surfaces. Since then, warm, sunny days and cool clear nights allowed the snowpack to resume another prolonged diurnal melt-freeze cycle reminiscent of the springtime. Avalanche concerns are now limited anywhere you find firm and frozen snow surfaces. As the snowpack thaws throughout the day, small wet loose activity and cornice fall may continue on the steepest, sunniest slopes. A wet avalanche cycle has largely run its course, but consider avoiding consequential terrain late in the day where you find wet, slushy snow. 

Eastern portions of the zone received little snow during the last storm, and thick icy crusts exist on the surface maintaining challenging travel conditions. There was a significant loss in overall snow height in January, and many ridgelines, southern aspects, and low elevation slopes melted out to bare ground. Several creeks reopened as well, and many snow bridges fractured or collapsed. Shallowly buried obstacles are additional hazards to manage. Conditions don't look to change anytime soon with dry, sunny weather in the forecast for the rest of the week.  

Regioni coperte