Lawinenlagebericht

Stevens Pass

Northwest Avalanche Center
Auf der Karte ansehen

Lawinengefahr

Sun
Hochgebirge
1 · Gering
Waldgrenze
1 · Gering
Unterhalb
1 · Gering
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Veraltet — dieser Lagebericht ist 4 years ago abgelaufen. Du siehst vergangene Verhältnisse, nicht den aktuellen Bericht.

Kernpunkte

Travel should be easiest in the morning while the surface crust is still frozen. You could trigger loose wet avalanches on very steep slopes once the crust breaks down, and if you sink deeply into wet snow. Expect challenging travel with plenty of old debris, breakable crusts, wet snow, and open creeks to contend with.

Lawinenprobleme

  • Loose Wet

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–1.5

    You may be able to trigger small loose wet avalanches on steeper slopes if surfaces soften during the day. Most of the recent snow is wet and saturated. The biggest indicators that you could trigger wet avalanches on Saturday are the presence of a surface crust or not. If surface crusts melt and become weak, move to lower angle or shaded slopes.  Wet slides could potentially gouge into deeper wet snow and become large in some very steep areas.

    (3/4/2022)

    Lichtenberg's SW side with lots of debris from earlier in the week. 

    Photo: Pat Riffie

Avalanche Discussion

There was a widespread, natural avalanche cycle in most of the Cascades on February 28th, while the area received heavy snow, followed by heavy rain. Stevens Pass picked up nearly 8" of water equivalent February 26-March 1. The first 3" of water brought 28" of snow accumulation into the morning of the 28th. The rest fell as rain at 4,000ft but more snow may have accumulated above 6,000ft. Rain fell up to at least 6,500ft, but maybe not much higher. The avalanche cycle in the Stevens Pass zone included multiple slides at size D2.5-3, and many in the smaller range. Check out the avalanche database for more details on some of these.

In the past days, light snow and rain fell with shallow accumulation. Quiet weather and cooling temperatures have allowed the avalanche danger to ease. 

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