Bollettino valanghe

Mount Shasta

Mount Shasta Avalanche Center
Vedi sulla mappa

Pericolo valanghe

Fri
Alta quota
3 · Marcato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
Open full map
Non aggiornato — questo bollettino è scaduto 4 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Even though the skies are clear, remember to pay attention to the wind. Fresh snow remains available for wind transport. Wind out of the north has and will continue to blow above treeline, loading southerly aspects. Watch for steep, open slopes near ridges and areas with cliffs or gullies where fresh, wind-blown snow has piled up. Huge cornices lurk along many ridgelines, too. Steer clear. 

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2

    People could still trigger wind slab avalanches large enough to bury them on steep, wind-loaded slopes today. Wind slabs could exist on almost any aspect due to shifting winds blowing snow back and forth across ridges. Some slabs are dense and wind compacted, some softer. In addition, huge cornices have formed along many ridgelines. Your best chance of encountering a wind slab will exist above treeline on Mount Shasta, Ash Creek Butte, high in the Eddy Mountains or along Middle Peak ridge in the Castle Lake area. Blowing snow, cornices above a slope, drifted snow, dense hollow-sounding snow, and wind-created surface textures all indicate the presence of wind slabs. Before committing to any slopes where wind slabs might exist, look for any signs of instability, like recent avalanches, shooting cracks, or unstable test results. If signs of instability or uncertainty about a slope exist, bypass that area and switch to sub-30-degree slopes without steeper terrain above.

Regioni coperte