Lawinenlagebericht

South Coast Inland

Jan 23, 2017Avalanche Canada
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Archiviert · abgelaufen 10 years ago

Lawinengefahr

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

Don't let the lure of deep powder in the alpine zone draw you into terrain that's inappropriate for the conditions.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–3
    Weaknesses exist within and under the new snow. Slabs will be particulary deep and touchy on wind-loaded northerly aspects near ridge crests. Small avalanches may "step down", resulting in large destructive avalanches.

Confidence

Moderate - Due to the number of field observations

Weather Forecast

We're looking at seasonal temperatures, light winds, a mix of sun and cloud with occasional isolated flurries for most of the week. MONDAY: Cloudy with sunny breaks. Freezing levels around 1100m with light northerly winds. TUESDAY: A mix of sun and cloud. Freezing levels around 500m with light northerly winds. WEDNESDAY: A mix of sun and cloud. Freezing levels around 500m with light westerly winds.

Avalanche Summary

No new reported.

Snowpack Summary

SOUTHERN AREAS (e.g. Coquihalla): 10-20cm of snow from last week appears to be bonding well to the previous rain-soaked snow surface up to treeline elevations. At alpine elevations, up to 40cm of storm snow fell with some wind slabs forming on northerly aspects.NORTHERN AREAS (e.g. Duffey Lake): Up to 45 cm of fresh snow by Friday morning brought the storm snow totals to over a metre, which was all redistributed by moderate to strong southerly winds. This resulted in touchy storm and wind slabs bonding poorly to the previous snow surface that includes facets and large surface hoar on sheltered slopes and/or a sun crust on steep sun-exposed aspects, as well as wind-affected surfaces (e.g. hard wind slab, sastrugi, scoured crust, etc.) in exposed areas. Weaknesses within the recent storm snow have been settling - I'd remain suspicious of the bond of the storm snow in the alpine to the previous cold snow surface from over a week ago.

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