Lawinenlagebericht

Cariboos

Apr 2 – 3, 2025Avalanche Canada
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Lawinengefahr

Fri
Sat
Hochgebirge
2 · Mässig
Waldgrenze
1 · Gering
Unterhalb
1 · Gering
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Kernpunkte

There have been several recent cornice falls triggering very large persistent slabs.

Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.

Lawinenprobleme

  • Cornices

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

    Recent cornice failures have triggered very large persistent slab avalanches.

  • Persistent Slabs

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

    Very large natural persistent slab avalanches have recently been reported, primarily on northerly aspects in the alpine.

  • Storm Slabs

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

    Triggering slabs will be most likely on wind affected slopes at upper elevations.

Confidence

Moderate

Avalanche Summary

On Tuesday, a naturaly triggered size 3 and a cornice triggered size 2.5 persistent slabs were reported on northerly aspects in the alpine near Blue River.

There have been several recent cornice falls triggering very large persistent slabs in this region.

NOTE: Observations in this region are currently very limited.

Snowpack Summary

Up to 20 cm of recent snow overlies a crust everywhere except northerly aspects in the alpine where a layer of small surface hoar may be present. Recent snowfall amounts taper with elevation.

Below this is a moist upper snowpack.

The primary weak layer of concern is a surface hoar, facet, and crust layer from early March, buried 60 to 120 cm deep.

The lower snowpack is generally well settled and strong in most areas.

Weather Summary

Wednesday Night

Clear skies. 10 to 20 km/h north ridgetop wind. Treeline temperature -8 °C. Freezing level valley bottom.

Thursday

Sunny. 5 to 10 km/h north ridgetop wind. Treeline temperature -4 °C. Freezing level 1500 m.

Friday

Sunny. 5 to 10 km/h southwest ridgetop wind. Treeline temperature 1 °C. Freezing level 2000 m.

Saturday

Sunny. 5 to 10 km/h south ridgetop wind. Treeline temperature 4 °C. Freezing level 2400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Cornice failures could trigger large and destructive avalanches.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Triggering deep layers is more likely if the snow surface didn't freeze overnight.
  • Storm slabs in motion may step down to deeply buried weak layers and result in very large avalanches.

Abgedeckte Regionen