Lawinenlagebericht

Jasper

Feb 16 – 17, 2021
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Archiviert · abgelaufen 6 years ago

Lawinengefahr

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

Kernpunkte

There has been a decrease in natural avalanche activity in the past 2 days, yet there is a concern that human triggered avalanches are still possible in shallow areas where the snowpack is facetted and weak.

Lawinenprobleme

  • Wind Slabs

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

    Recent wind slab activity has been noted in high elevation wind loaded features. It seems to require a large trigger such as a cornice failure to initiate or potentially a shallow location where a skiers weight may be enough.

  • Loose Dry

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

    Isolated, sheltered features that have not been impacted by winds are susceptible to sluffing and loose dry avalanches. Ice climbers be aware of these features.

Weather Forecast

We will return to seasonal normals with alpine temperatures between -17C and -10C for the next few days. A mix of sun and cloud with trace amounts of snow forecasted for Tuesday. Winds expected to be light from the southwest to northwest.

Snowpack Summary

The upper snowpack has facetted from the recent cold temperatures and overlies a supportive mid-pack, except in shallow areas where the entire snowpack is weak and facetted. Variable wind effect in the alpine and at tree line.

Avalanche Summary

One sz 3 avalanche (wind slab) observed from extreme, alpine, north aspect terrain.  No other avalanches observed.

Confidence

Abgedeckte Regionen