Lawinenlagebericht

South Rockies

Mar 31 – Apr 1, 2024Avalanche Canada
Auf der Karte ansehen
Archiviert · abgelaufen 3 years ago

Lawinengefahr

Tue
Wed
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
2 · Mässig
Vollständige Karte öffnen

Kernpunkte

Rapid warming will increase the likelihood of triggering large avalanches.

The more the snowpack warms-up and weakens, the more conservative you`ll want to be with your terrain selection.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–2

    Recent wind has varied in direction so watch for wind slabs on all aspects.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2–3

    Rapid warming increases the likelihood of triggering very large avalanches on deeply buried weak layers.

  • Loose Wet

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Very Likely
    Größe
    1–1.5

    Expect the high freezing levels and sunshine to trigger wet loose avalanches on all but true north aspects in the alpine.

Confidence

Moderate

Avalanche Summary

Numerous natural and rider triggered wet loose avalanches up to size 1.5 on sunny aspects were reported on Saturday.

Data is limited in this region. Please consider posting your observations to the Mountain Information Network.

Snowpack Summary

Strong solar radiation has formed a surface crust everywhere except north facing terrian at upper elevations.

20 to 30 cm of recent snow overlies a crust on all but north facing aspects in the alpine.

A persistent weak layer of facets are sitting on top of a second buried crust down 80 to 120 cm. This layer is unlikely to human trigger in areas where a thick crust below the recent snow is present. However, steep or convex terrain features with a shallow or thin to thick snowpack at treeline and above are the most likely places where it may be possible to trigger this layer with large loads.

Weather Summary

Sunday Night

Clear skies. 40 to 50 km/h northwest ridgetop wind. Treeline temperature -3° C. Freezing level 1600 m.

Monday

Sunny. 20 to 30 km/h northwest ridgetop wind. Treeline temperature 5° C. Freezing level 2600 m.

Tuesday

Sunny. 30 to 40 km/h west ridgetop wind. Treeline temperature 7° C. Freezing level 3000 m.

Wednesday

Mix of sun and cloud with isolated flurries, 0 to 5 cm snow. 40 to 50 km/h southwest ridgetop wind. Treeline temperature 1° C. Freezing level 2100 m.

Check out the Mountain Weather Forecast for additional weather information.

Wednesday

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • The more the snowpack warms-up and weakens, the more conservative you`ll want to be with your terrain selection.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • If triggered loose wet avalanches may step down to deeper layers resulting in larger avalanches.
  • Cornice failure may trigger large avalanches.

Abgedeckte Regionen