Lawinenlagebericht

Kananaskis

Apr 8 – 9, 2014Alberta Parks
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Archiviert · abgelaufen 12 years ago

Lawinengefahr

Thu
Fri
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Kernpunkte

The first big Spring warm-up occurred today producing isothermal snow and a large avalanche cycle up to size 3.0. An approaching cold front will cool things down, but the sun will shine Wednesday. Avoid all avalanche terrain when the snow is moist.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    1–3
    Wind slabs are found in lee and cross-loaded terrain at Treeline and above. Be cautious in steep terrain immediately below ridge crests.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2–5
    This weak layer has been improving in general, but it will be more touchy during times of intense solar radiation and/or warming. Solar triggered avalanches today failed on this layer and also stepped to ground.

  • Loose Wet

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1–3
    Solar radiation is intense at this time of year. Snow stability will deteriorate rapidly when exposed to the sun. Solar triggered avalanches today stepped to ground.

Confidence

Good - Timing or intensity of solar radiation is uncertain

Weather Forecast

A cold front will move into the region tonight and cool the temperatures. As much as 8cm of new snow is possible overnight. Wednesday will bring a  mix of sun and cloud, strong west winds and Alpine temperatures near -6 degrees. Freezing levels should only reach 1300m.

Avalanche Summary

A widespread natural cycle up to size 3.0 was triggered by warming and solar radiation. Both loose wet and loose slab avalanches were observed today. Most of the slides stepped to ground.

Snowpack Summary

Spring conditions. Isothermal snow below treeline on all aspects and on solar aspects at all elevations. Numerous loose wet and loose slab avalanches up to size 3.0 had occurred by midday. Wind slabs are present in Alpine and Treeline terrain on lee and cross-loaded features. Cornices are sagging.

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