Lawinenlagebericht

Waterton Lakes

Mar 4 – 7, 2014Parks Canada
Auf der Karte ansehen
Archiviert · abgelaufen 13 years ago

Lawinengefahr

Tue
Wed
Hochgebirge
3 · Erheblich
Waldgrenze
3 · Erheblich
Unterhalb
3 · Erheblich
Vollständige Karte öffnen

Kernpunkte

Warming temperatures and active weather may lead to an increase in avalanche activity this week. Stay conservative with your terrain selection

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible - Likely
    Größe
    1–2
    Variable winds have been actively creating windslabs over the last week. Now with more snow and moderate to strong SW winds in the forecast, expect to encounter slabs as you enter open terrain.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–3
    These slabs became less sensitive with cold temperatures and increasing depth. Now as conditions change with rapid loading and warming, limit your exposure to significant slopes. Do not get taken by surprise. Long propagations may still be possible.

Weather Forecast

Warm, wet pacific air is battling with cold arctic air over the prairies. One low is pushing through Mon and a second will move through Thurs. Warm temperatures with freezing levels near 15-1700m. Moderate to Strong Southwest winds should be expected through Thursday. Precip will be steady Tuesday with significant amounts expected Wed and Thursday.

Snowpack Summary

West winds began to redistribute the recent low density storm snow today. This snow buried a thin crust on solar aspects and isolated windslabs found at treeline and above. Between 70 and 150cm now buries the weak February Facet Layer. Large avalanches will result if this layer is triggered given the demonstrated ability of this slab to propagate..

Avalanche Summary

One significant persistent slab released just before the cold snap. A few skier triggered windslabs have been seen in the neighboring areas. As we emerge from the cold temperatures there is concern for the persistent slabs to become touchy again. Rapid loading from the forecast wind and snow may result in significant avalanche activity.

Confidence

Intensity of incoming weather systems is uncertain

Abgedeckte Regionen