Bollettino valanghe

Mt Hood

Northwest Avalanche Center
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Pericolo valanghe

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

In sintesi

Sensitive cornices and shallow wind slabs will be found on lee slopes near ridge crests. Give cornices plenty of space and steer around start zones steeper than 35 degrees where windblown snow has accumulated.

Problemi valanghivi

  • Wind Slabs

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

    Shallow wind slabs will linger on lee slopes above about 6000'. Recent observations from around Mt Hood suggest that slabs around 3-6" thick are still present where windblown snow has accumulated.  These slabs are generally soft and are most likely to be found on lee slopes near ridgelines and under cornices. Use inconsequential wind loaded test slopes to examine the bond of wind transported snow before committing to larger open slopes. These avalanches are unlikely to be large, but use caution near terrain traps like creeks and above cliffs where even a small slide could have big consequences. Cornices have grown substantially over the last two weeks and may fail easily. Give cornices plenty of space and avoid traveling underneath them.

    (1/7/2021) A shallow wind slab triggered in White River on a small test slope. Use small test slopes like this to gather information before committing to larger more open slopes.

Avalanche Discussion

Conditions are generally stable, but it will still be possible to trigger an avalanche in steep wind loaded terrain.

During the ongoing Covid-19 pandemic, continue to follow the latest guidance from local, state, and federal health officials. Avoid unnecessary risks that could impact first responders and stress medical resources.  Wear a mask when appropriate, practice social distancing, and consider recreating closer to home.

Regioni coperte