Bollettino valanghe

Elkhorns

Wallowa Avalanche Center
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Pericolo valanghe

Sat
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
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Non aggiornato — questo bollettino è scaduto 5 months ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

It has been four consecutive days of above freezing temperatures in the mountains, and unseasonably warm temperatures mean it is possible to trigger a large, wet avalanche today. Focus on the consequence, not the likelihood, of triggering a large, destructive avalanche and carefully evaluate the terrain before commiting to steep slopes.

This forecast is sponsored by Eagle Cap Mountain Guides in La Grande. 

Problemi valanghivi

  • Wet Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    2–3

    All of our forecast areas have had several consecutive days of above-freezing temperatures, meaning snow is settling quickly, and liquid water may start running through the snowpack. With all of the crusts and weak layers that exist in our snowpack, we have the structure to potentially see large or very large wet slab avalanches.

    Wet slab avalanches are notoriously destructive and difficult to forecast. While the chance of triggering such an avalanche may be low, the consequence would likely be catastrophic. Be particularly cautious on sun-affected slopes or very steep slopes with rock outcropings, and if you see roller-balls, signs of recent avalanches, or find yourself sinking into wet, unconsolidated snow, move to lower-angle terrain until temps drop and the snowpack can stabilize.

    As the temps stay high, you should also be wary of wet-loose avalanches and cornice fall, both of which could be large and destructive today. Avoid travelling on or below very steep, rocky terrain where wet-loose avalanches are most likely, and give cornices a wide margin. Be careful along ridgelines where cornices have formed, as they can break further back than expected, and limit the time you spend on slopes adjacent to or below them.

     

    (3/19/2026) Photo: Caleb Merrill

Avalanche Discussion

Those who have been tracking the conditions along with us may be wondering, what happened to the persistent slab problem? Warming trends over the past week have almost eliminated the Valentine's Day Buried Surface Hoar layer, which was one of the persistent weak layers that we were tracking. The deeper persistent layers, the January Facets (down 2-4 feet deep), are still around but with four consecutive days of unseasonably high temperatures, the biggest concern is now water pooling on these crust/facet layers and causing the now wet and consolidated slab above it to release. 

Wet slab avalanches are notoriously destructive and difficult to forecast. Although the likelihood of triggering such an avalanche may be low, the consequences would likely be catastrophic. Be particularly cautious on sun-affected slopes, and if you see roller-balls, signs of recent avalanches, or find yourself sinking into wet, unconsolidated snow, move to lower-angle terrain.

As the temps stay high, you should also be wary of wet-loose avalanches, which are most likely on very steep, rocky, south-facing terrain and could get as large as D2 today. Additionally, be sure to give cornices a wide margin, both when travelling on ridgelines above them and any time you are on a slope in the runout below them.

Let's paint this picture together.  Let us know what you are seeing out there through an observation.  It doesn't need to be complex or technical- just a few pictures and a description of what you encountered is super helpful to forecasters.  

Beacon Parks: Thank you to everyone who helped establish the beacon training park at Anthony Lakes (across from the ski lift on Mud Lake) and near the warming shelter at Salt Creek Summit snopark outside of Joseph, OR. This is a valuable free resource that everyone should use to practice their companion rescue skills. 

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