Lawinenlagebericht

Jasper

Feb 12 – 13, 2025Avalanche Canada
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Archiviert · abgelaufen 2 years ago

Lawinengefahr

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

The cold temperatures and brisk northerly winds will continue another day.

Carefully assess wind effected slopes if you're heading out into the hills.

Lawinenprobleme

  • Wind Slabs

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

    Moderate to strong northerly winds continue to load snow into leeward features, particularly in the icefields area.

  • Deep Persistent Slabs

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

    A variety of crusts with facets above and below exist at the bottom of the snowpack. These layers are going to be with us for a long time and pose a low probability, high consequence situation if triggered.

Confidence

High

Avalanche Summary

A natural size 2 wind slab on the east face of Boundary Peak was observed on Feb 11. Small wind slabs were also easily triggered by skiers on moraine features in the same area.

Snowpack Summary

The 10-25 cm from Feb 1st, mostly redistributed by wind, sits over top of a weak layer consisting of temperature crusts, winds slabs, or faceted snow. The midpack is weak and faceted. The early season crusts are faceting and breaking down but continue to persist along with large depth hoar at the base. The snowpack at tree line is 70-130 cm in the Icefields area and 50 cm in the Maligne area.

Weather Summary

Wednesday

A mix of sun and cloud.

Precipitation: Nil.

Alpine temperature: High -14 °C.

Ridge wind northwest: 20-30 km/h.

Thursday

A mix of sun and cloud.

Precipitation: Nil.

Alpine temperature: Low -20 °C, High -12 °C.

Ridge wind south: 10 km/h.

Freezing level at valley bottom.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.

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