Lawinenlagebericht

Microwave-Sinclair

Feb 25 – 26, 2024Avalanche Canada
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Archiviert · abgelaufen 3 years ago

Lawinengefahr

Tue
Wed
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering

Kernpunkte

Watch for fresh, reactive wind slabs forming in lee terrain features at upper elevations.

Lawinenprobleme

  • Wind Slabs

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

    Small amounts of new snow and wind are forming fresh wind slabs in lee terrain features. They may be especially reactive where they sit over a variety of weak grain types and/or hard surfaces.

Confidence

Moderate

Avalanche Summary

No new avalanche observations since Thursday when a small (size 1) wind slab was triggered by a sledder in the alpine.

Snowpack Summary

Small amounts of new snow falls over faceted and wind-affected surfaces. At upper elevations, west winds are redistributing the new snow into fresh wind slabs in leeward terrain features. Older, hard wind slabs sit over weak faceted crystals and a crust, 20 to 30 cm below the surface.

The mid and lower snowpack is generally well-bonded and strong.

Weather Summary

Saturday night

Cloudy with up to 5 cm of snow. 40 to 60 km/h west ridgetop wind. Treeline temperature -5 °C.

Sunday

Mostly cloudy with around 5 cm of snow. 30 to 50 km/h west ridgetop wind. Treeline temperature -4 °C.

Monday

Around 5 cm overnight then clearing to a mix of sun and cloud. 10 to 20 km/h northeast ridgetop wind. Treeline temperature -12 °C.

Tuesday

A mix of sun and cloud. 20 to 40 km/h south ridgetop wind. Treeline temperature -16 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Wind slabs are most reactive during their formation.

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