Lawinenlagebericht

South Rockies

Avalanche Canada
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Lawinengefahr

Sat
Sun
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Veraltet — dieser Lagebericht ist 5 months ago abgelaufen. Du siehst vergangene Verhältnisse, nicht den aktuellen Bericht.

Kernpunkte

New snow and wind may have created slabs in lee features.

Give them time to settle before pushing into big terrain.

Lawinenprobleme

  • Wind Slabs

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

    Avoid wind-loaded areas. Slabs may still be rider-triggered in steep terrain.

  • Persistent Slabs

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

    Facets have developed over a crust formed after the atmospheric river. This layer is now buried 50 to 70 cm deep and has been reactive in snowpack tests. This problem is unlikely, but if triggered, it would be a large avalanche.

  • Loose Wet

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

    Wet loose avalanches may occur as the temperature rises and the sun hits the new snow for the first time.

Confidence

Moderate

  • We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

Small dry loose and wet loose avalanches continued on Tuesday and Wednesday.

Snowpack Summary

10 to 15 cm of new snow buries a crust from strong sun on Tuesday; no new crust is expected on shaded slopes.

A crust formed after the atmospheric river in early March is down 50 to 70 cm, and facets have been observed over the crust. This layer has been reactive in snowpack tests in the Crowsnest Pass.

Below this, the snowpack is generally well consolidated with facets at the base of the snowpack in shallow areas near Elkford.

Weather Summary

Thursday Night
Cloudy. 2 cm of snow. 30 km/h northwest ridgetop wind. Treeline temperature -3 °C.

Friday
Mix of sun and clouds. 30 km/h west ridgetop wind. Treeline temperature -3 °C.

Saturday
Mostly sunny. 40 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 2300 m.

Sunday
Mix of sun and clouds. 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 2500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • If triggered, wind slabs may step down to deeper layers, causing larger avalanches.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Avoid sun-exposed slopes, especially if the snow surface is moist or wet.

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