Lawinenlagebericht

Northwest Inland

Jan 9 – 10, 2015Avalanche Canada
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Archiviert · abgelaufen 12 years ago

Lawinengefahr

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

The weather pattern is fairly stable but watch for thin fresh wind slabs and lingering hard wind slabs in wind exposed terrain.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–3
    Strong and variable winds have created dense wind slabs in exposed lee terrain and may have cross-loaded gully features.

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Unlikely - Possible
    Größe
    2–6
    Heavy triggers like cornice falls or smaller avalanches have the potential to trigger one of the deeper persistent weak layers. These layers were most reactive in the north of the region recently.

Confidence

Fair - Due to the number of field observations

Weather Forecast

Synopsis: There’s a chance of flurries tonight and Saturday morning as a weak frontal system brushes the Northwest. We should see a drying trend on Saturday and a mix of sun and cloud throughout the weekend. The freezing level remains at valley bottom and ridge winds are generally light from the SW. We could see increasing cloud on Monday as another Pacific system approaches. This could bring moderate precipitation, but it’s arrival looks more likely on Monday night or Tuesday.

Avalanche Summary

There are no new reports of natural avalanches. On Wednesday, a natural size 2 storm slab was reported in the south of the region and isolated natural wind slabs from steep terrain to size 1.5 were reported in the north of the region.

Snowpack Summary

A thin melt-freeze crust now covers the 40-80 cm of recent storm snow up to at least treeline. Strong and variable winds may have created soft or stiff wind slabs on a variety of aspects in exposed terrain. Below the storm snow may be a rain crust at lower elevations. In the mid-pack you may find a surface hoar layer, although it appears to be spotty in distribution. Near the bottom of the snowpack is a crust facet combo that was buried in mid-November.

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