Lawinenlagebericht

Waterton Lakes

Jan 8 – 11, 2019Parks Canada
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Archiviert · abgelaufen 8 years ago

Lawinengefahr

Wed
Thu
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Kernpunkte

Lingering uncertainty about the ability to trigger deep persistent weak layers requires a cautious approach to terrain. Avoid thick to thin snowpack transitions, and have a healthy respect for what is above you.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–2
    New windslabs will be building as winds and snowfall increase on Wednesday.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    2–3.5
    There has not been much recent activity on the facets deep in the snowpack, but there is still the possibility to trigger them in shallow areas.

Avalanche Summary

Recent snow and winds led to a limited natural cycle on west aspects on the weekend, with avalanches to size 2 observed along the Akamina Parkway and cornice fall triggering a size 2.5 in Red Rock Canyon. Small skier controlled windslabs were reported in the Castle Mountain region.

Confidence

Snowpack Summary

The Alpine is highly wind affected from strong west winds. Snowpack at treeline is comprised of 20-30cm of new wind slabs above many layers of old wind slabs. These have bonded well to create a strong mid pack, though the bottom of the snowpack remains facetted and weak. Snow cover is variable, with a treeline average of 160cm at Cameron Lake.

Weather Forecast

TUESDAY Temperatures warming throughout the day, with freezing levels at valley bottom. Light SW windsWEDNESDAY Flurries up to 10cm with moderate SW winds building to strong overnight. Freezing levels to 1600mFRIDAY  Flurries up to 5cm with Moderate to Strong W winds. Freezing level to 1600m.

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