Lawinenlagebericht

Jasper

Jan 12 – 13, 2020Parks Canada
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Archiviert · abgelaufen 7 years ago

Lawinengefahr

Mon
Tue
Hochgebirge
3 · Erheblich
Waldgrenze
3 · Erheblich
Unterhalb
2 · Mässig
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Kernpunkte

Natural activity is tapering off but potential for human triggered avalanches remains. There is a lot of uncertainty in the current snowpack. If avalanches don't get you, the freezing cold will!

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–3

    Avalanche activity has tapered off but human triggered avalanches are still likely.

  • Loose Dry

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

    Caution in steep gullies and terrain traps where a small sluff could have major consequences. Avoid terrain where this problem could initiate slab avalanches on deeper layers.

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–3

    On Wednesday, numerous avalanches were observed throughout the region that failed to ground. Activity has tapered off but may be waiting for the human trigger.

Weather Forecast

Sunday will be mainly cloudy with isolated flurries, trace snow, -18 C, and light East winds. Monday will be cloudy with sunny periods and isolated flurries, trace snow, low -33 C and high -26 C with light ridge wind.

Visit CAA's Mountain Weather Forecast for more specific details.

Snowpack Summary

The area received 60cm new snow January 1-7. SW winds created wind slab on lee aspects and cross-loaded features the alpine and treeline. This overlies surface hoar up to 2000m in sheltered areas as well as buried wind slabs on lee features at treeline and above. The bottom of the snowpack consists of depth hoar and facets.

Avalanche Summary

A Saturday road patrol observed a new sz 2.5 wind slab that went to ground at treeline in a wind prone area as well as a sz 3 in the Parker Slabs area.  A widespread avalanche cycle up to size 3 occurred a few days ago on all aspects and elevations on wind slab, dry loose and deep persistent slab.

Confidence

The weather pattern is stable

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