Lawinenlagebericht

Glacier

Mar 22 – 23, 2024Avalanche Canada
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Archiviert · abgelaufen 3 years ago

Lawinengefahr

Sun
Mon
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering

Kernpunkte

Human triggered avalanches are still possible and if the sun comes out, watch out for natural activity.

Expect conditions to vary greatly with elevation and aspect.

Lawinenprobleme

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2.5–3.5

    Two persistent layers are the main concern in the snowpack. One down ~30cm which, if triggered, could step down to the layer deeper in the snowpack. In areas with a robust crust, this is less likely of a concern.

Confidence

Moderate

Avalanche Summary

Avalanche activity has decreased with cooler temperatures and cloud cover.

A widespread natural avalanche cycle of size 3-3.5 occurred last week. These wet avalanches failed within the moist upper snowpack and stepped down to the persistent weak layer (over 1m deep).

A field team investigated a natural, size 3 avalanche that occurred on Mar 18th, on a N aspect at tree-line. The failure plane was down ~120 cm on the Feb 3rd persistent weak layer.

Snowpack Summary

New snow buried a crust found on most aspects and elevations, except treeline and above on polar slopes. Rain created a crust below treeline, which will freeze & thaw with diurnal temperature fluctuations.

A weak layer formed on March 9th is down ~30cm. It has been preserved on N aspects at treeline and above.

The Feb 03 crust is down 80-140 cm and a weak layer of loose snow sits above it.

Weather Summary

A fairly benign weather pattern brings a mix of sun & cloud with cooler temps and very little precip.

Tonight: Trace precip, Alp Low: -8, Light E winds, Freezing level (fz): Valley Bottom

Sat: Mix of sun & cloud, Alp High: -4, Light E winds, fz level: 1600 m

Sun: Sunny w/ cloudy periods, Alp High: -8, Light E winds. Fz level 1000m

Mon: Cloudy/sunny periods, Alp High: -2, Light E winds, fz level 1800m

Terrain and Travel Advice

  • Be mindful that deep instabilities are still present and have produced recent large avalanches.
  • Keep in mind the crust offers an excellent bed surface for avalanches.
  • Remember that the snowpack will be significantly different at higher elevations than lower down.

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