Lawinenlagebericht

Cariboos

Dec 6 – 7, 2013Avalanche Canada
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Archiviert · abgelaufen 13 years ago

Lawinengefahr

Sun
Mon
Hochgebirge
2 · Mässig
Waldgrenze
2 · Mässig
Unterhalb
1 · Gering

Kernpunkte

This forecast is based on limited field observations. If you head into the mountains, please send a note to [email protected] and let us know what you saw.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–4
    Outflow winds are reverse-loading and cross-loading exposed slopes forming fresh and touchy wind slabs below ridge crests and behind terrain features. Don't let wind slabs in unusual places catch you by surprise.
  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    2–5

Confidence

Fair - Due to the number of field observations

Weather Forecast

Saturday: Mainly sunny with some thin cloud possible, moderate northwesterly alpine winds. Treeline temperatures expected to be around -20. Sunday: Increasing cloud with light flurries possible in the evening. Moderate northwest alpine winds and treeline temperatures around -15. Monday: Cloudy with light flurries possible. Moderate northwest alpine winds and treeline temperatures around -15.

Avalanche Summary

No recent avalanches have been reported but incoming field data is still very limited. Recent reports from the neighbouring Monashee Mtns are limited to natural and human triggered sluffs in steep terrain and 1 Size 1.5 explosive-triggered wind slab avalanche.

Snowpack Summary

Snowpack depths are likely highly variable across the region, with elevation, and in wind-exposed areas. Low-elevation and wind-affected areas likely have a shallow faceted snowpack. While in higher elevation sheltered areas 30-50 cm of recent storm snow overlies a variety of old snow surfaces including surface hoar in sheltered areas and/or sun crust on steep south facing slopes. In some neighbouring areas the buried surface hoar is giving easy to moderate sudden planar compression test results, while elsewhere the storm snow has yet to settle into a sufficiently cohesive slab. There are two distinct weaknesses within the mid and lower snowpack: the early November surface hoar/facet/crust interface is down roughly half way (50-60cm) and the October rain crust is near the ground. Recent snowpack tests gave easy results on the early November mid-pack interface where it was found to be facets under a crust. Cold clear weather is likely promoting surface hoar growth and near surface faceting.

Abgedeckte Regionen