Bollettino valanghe

Presidential Range

Mount Washington Avalanche Center
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Pericolo valanghe

Tue
Alta quota
3 · Marcato
Limite del bosco
3 · Marcato
Sotto il limite
Senza grado
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Non aggiornato — questo bollettino è scaduto 2 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Avalanche conditions are still dangerous. Large, destructive avalanches could occur above 3000 feet in elevation where the wind has formed deep drifts of new snow. The most likely place to encounter one of these dangerous avalanches is on steep east-facing and south-facing slopes such as Tuckerman Ravine, Gulf of Slides, and the Summer Lion Head Hiking Trail. Long, shooting cracks under your feet, collapses in the snowpack from your weight, and the added weight of warm, sunny conditions are all signs that conditions are dangerous.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1.5–3

    Large wind slabs from recent storm snow will be easy to find across east-facing and south-facing terrain. Triggering one of these slabs could lead to a highly destructive avalanche with the ability to snap mature trees and bury multiple people. Expect these slabs to be very thick (multiple feet), stiff on the surface, and harbor multiple weak layers underneath. Traveling on these slabs could give a false sense of stability until it is too late. Today’s hard slabs could be triggered easily from an area of softer and protected snow, or from an invisible thin spot in the snowpack. Naturally occuring avalanches will be increasingly likely through the day as warm temperatures and sunshine affect the surface of the snow.

Avalanche Discussion

Conservative route finding, decision making, and terrain management are critical for safe travel around avalanche terrain today. After a large natural avalanche cycle during the storm this weekend, the primary avalanche concern is around steep slopes that did not avalanche naturally and areas where new wind slabs have rebuilt on top of areas that have already avalanched. Traveling in the mountains on skis today could be tempting given the recent snow, the increase in the size of snow slopes, and the beautiful weather. Don’t underestimate the continued elevated avalanche danger or the destructive capability of triggering an avalanche today.  Some of the area’s most popular terrain also happen to be areas with the greatest potential for large avalanches. This includes but isn’t limited to the Sluice and Lip areas of Tuckerman Ravine, the Gulf of Slides, and the Summer Lion Head hiking trail. At all times today, consider the consequence of a large avalanche occurring where you are and use that as a tool to help make conservative terrain choices. 

OBSERVATIONS: Please consider submitting an observation of what you are seeing in your travels. Submitting an observation hones your skills, informs other users, and improves our forecasts.

Regioni coperte