Bollettino valanghe

Central Cascades

Central Oregon Avalanche Center
Vedi sulla mappa

Pericolo valanghe

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

In sintesi

Wind slabs that formed as recently as Thursday morning may be sitting on weak/low density snow on northerly aspects. Evaluate snow and terrain carefully if you encounter signs of wind loading.

To quiz your understanding of this forecast click here.

To learn more about this winter's quiz project click here.

Problemi valanghivi

  • Wind Slabs

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

    Southerly winds over the last few days have been moving snow to northerly aspects. Be cautious if you see signs of wind transported snow on lee slopes. Existing wind slabs will be trending toward more difficult to trigger, but will still be possible to trigger on Friday in the right terrain.

    Look for visual signs such as pillows of wind difted snow, and a wavy or uneven surface texture to indicate a surface may be wind loaded. Recently formed cornices can also be clues that wind slabs are present. If you see cracking in the surface snow or experience hollow sounds on the surface, these are signs to move to lower anger terrain and/or avoid loaded slopes

Avalanche Discussion

The region has received about a foot of snow in the last 3 days although that new snow has undergone a fair amount settlement. The last rain crust now sits about 8 to 12" below the surface. The older storm snow from last week is trending to being bonded to that rain crust. As the recent snow trickled in, the snowpack has had time to respond and adjust. Wind loaded slopes, may be the exception and still require caution.

Weak snow has been found below the most recent rain crust on north and east facing terrain. Although avalanches are not expected to initiate on this layer, it is something to monitor especially with more snow loading. 

 

 

 

 

Regioni coperte