Bollettino valanghe

Presidential Range

Mount Washington Avalanche Center
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Pericolo valanghe

Thu
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 6 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

A few inches of new snow and west winds may be enough to form fresh drifts in middle and upper elevations capable of burying a person if triggered. Wind will continue to drift snow, building larger drifts through the day. Triggering even a small slide at upper elevations could be dangerous on the icy wind scoured surface below. Avalanche danger today is MODERATE.

Problemi valanghivi

  • Wind Slabs

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

    New wind slabs formed overnight may be found this morning on north facing, and cross loaded steep terrain, though the size of any new wind slabs is uncertain due to somewhat limited fetch from the south for some locations. Target areas for these wind slabs include many of the gullies in the Great Gulf, Kings Ravine, Hillman’s Highway, and the north facing wall of Huntington Ravine. West wind today will build new wind slabs in the typical hot-spot areas in east facing ravines including Tuckerman Ravine Headwall, Gulf of Slides and Central Gully in Huntington Ravine.  Given the relatively light-moderate wind speeds overnight and today, new slabs will be more on the reactive side of sensitivity, though the question of size remains. Watch for areas of drifting snow and proceed cautiously. 

Avalanche Discussion

Some level of uncertainty exists in today’s forecast of the overall size of new wind slab development. Hourly records from the summit show the bulk of the light density snow fell while the wind was from the south building wind slabs in NW-NE facing terrain. Available snow for  today’s west wind will be limited to mainly new snow falling today and residual snow from last night. Slabs of wind drifted snow developing today in east facing terrain could be anywhere from small to large (D1-D2).

Regioni coperte