Bollettino valanghe

Southern Wallowas

Wallowa Avalanche Center
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Pericolo valanghe

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

In sintesi

Sensitive wind slabs have developed and will continue to do so.  Avoid all wind loaded terrain over 30 degrees.  Wind slabs will be found sitting on top of the 1/12 rain crust, and slide and propagate with ease.  

Problemi valanghivi

  • Wind Slabs

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

    Expect to see wind slabs 2-4' thick, predominantly near and above tree line.  Winds have been moderate to strong, and with 1' of new snow recorded at Salt Creek summit on 1/27 there’s plenty of snow for transport. 

  • Persistent Slabs

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

    The Solstice Rain Crust has been observed in the Northern Wallowas in some locations only 2' from the surface.  This layer will become agitated and more reactive with a new load being added to it.  Use caution, as triggering an avalanche on this layer could be large and destructive.  

    Photo taken by local rider this past Sunday from the 100 Hillclimb.

Avalanche Discussion

We are not out of the woods in regards to weak persistent grains (sugar snow) from Mid November and the Solstice Rain Crust.  These layers are not buried that deeply in the snowpack.  Triggering one of them could ruin your day.  Just because you get away with riding a steep slope, it doesn't mean you made good terrain choices.  Consider digging into the snowpack so you can see for yourself, what lurks below.  

Regioni coperte