Lawinenlagebericht

Jasper

Dec 18 – 19, 2020
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Archiviert · abgelaufen 6 years ago

Lawinengefahr

Sat
Sun
Hochgebirge
3 · Erheblich
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering
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Kernpunkte

New snow and consistent winds are forecast the next few days. Recently some more aggressive ski lines and exposed ice climbs have been getting attention. The mountains are changing quickly so our terrain choices should follow suit. 

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–2.5

    New snow and moderate to strong winds forming wind slabs on leeward and cross-loaded terrain features.

  • Deep Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    1.5–3

    Be cautious of thick to thin snowpack areas being likely trigger locations. The new windslabs forming have the potential to step down to the weakness at the base of the snowpack.

Weather Forecast

Snowy and windy the next few days with cool temps.

Friday: Flurries. 8 cm. High -8 °C. Wind SW. 30 gusting to 55 km/h.

Saturday: Flurries. 6 cm. Low -13 °C, High -8 °C. Wind SW: 30 gusting to 65 km/h.

Sunday: Flurries. 10 cm. Low -13 °C, High -7 °C. Wind W 30 km/h gusting to 75 km/h.

Snowpack Summary

Strong SW winds are creating wind slabs in the alpine and open treeline. The mid snowpack is generally supportive with a weaker base consisting of facets and some locations depth hoar. Average depth is 55cm - 150cm depending on region and elevation.

Avalanche Summary

No new natural avalanche observations.

Confidence

Intensity of incoming weather systems is uncertain on Friday

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