Bollettino valanghe

Central Cascades

Central Oregon Avalanche Center
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Pericolo valanghe

Wed
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 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

We received a foot and a half of new snow in this latest storm.  On Monday we saw several reports of avalanche activity near treeline and at alpine elevations.  The new storm snow will need more time to settle.  Continue to be wary of steep, north and east slopes at these higher elevations.  Wherever you are riding, practice thoughtful travel techniques like riding slopes one at a time and carry avalanche rescue equipment.

Problemi valanghivi

  • Storm Slabs

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

    If you read the avalanche forecast regularly, you will notice that this problem and location doesn't look like what you are used to seeing.  The latest storm snow came in accompanied by relatively light winds from the West.  On Monday, the snow was much less wind effected than I am used to seeing.  Wind loaded pockets were neither as deep nor as hard as I am used to seeing.  That being said, avalanches that I observed were mostly located on lee slopes beneath ridgelines.  Are they Wind Slabs?  Storm Slabs?  Does it matter?

    The takeaway is to be cautious in the usual spots (north and east slopes beneath ridgelines), but that some of our usual assessment tools like probing to see how loaded a slope is, may not be adequate by themselves.  I checked out the avalanche on Moon Mountain and also some test slopes near by.  All of the avalanches I observed failed within the new storm snow.

    I am not ready to forget about the facets on sheltered north slopes that I spent all of January skiing.  Likely most of them were drenched by the rain Saturday night, and perhaps that has taken the "sting" out of them.  Avalanches are still possible on isolated slopes that are shady and sheltered lower in the terrain.  This is why I have shaded north slopes below treeline.  Test slopes, and compression tests will be useful before committing to very steep slopes (aren't they always).

    (2/9/2026)

    Slab avalanche D1.5 on Moon Mountain (approximately 7350 ft. Northeast)

    Photo: Gabriel Coler

Avalanche Discussion

Today at Todd Ridge I measured 45 cm. of new storm snow!  At elevations near treeline and below we can see the mark of Saturday night's rain beneath the storm snow as a rain crust and sometimes wet melt forms.  All of the instabilities observed on Monday occurred within the new storm snow.  We spent a lot of time in January writing about the faceted snow on sheltered north slopes.  Initial observations indicate that avalanches on these layers aren't particularly likely, but I'm not comfortable ruling them out. 

In addition to the slab avalanches observed near the crest, there were observations of small Loose avalanches on sunnier slopes.

Regioni coperte