Lawinenlagebericht

South Okanagan

Dec 16 – 17, 2022Avalanche Canada
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Lawinengefahr

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

Kernpunkte

Northerly winds may reverse-load features. Watch for fresh slabs around ridges and lee features.

Lawinenprobleme

  • Wind Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Possible
    Größe
    1–2

    Arctic air may bring increased northerly wind at ridgetop and reverse-load previously wind-affected features. Seek out wind-sheltered terrain where you can avoid wind slabs and find great riding.

Confidence

Low

Avalanche Summary

On Wednesday, two size 1 slab avalanches were triggered by skiers.

On Monday, a MIN from the Sun Peaks area reported a size 1 skier accidental avalanche in sparse trees. The slab consists of the recent wind-affected storm snow and looked to be 30 cm deep.

Please submit a Mountain Information Network report if you are heading to the backcountry!

Snowpack Summary

20-30 cm of recent snow has been redistributed by southwest winds at higher elevations. Forecasted northerly winds may reverse-load features and build fresh slabs. Now down 20-30 cm, this recent snow covers a crust on solar slopes and a layer of weak surface hoar in more shaded terrain.

Buried 40-60 cm deep, a layer of surface hoar, crust, and faceted crystals is a layer of concern. Observations are limited in this region but this layer has already produced avalanches in the neighbouring regions.

Snowpack depths at upper elevations are around 80-100 cm.

Weather Summary

Thursday night

Mostly cloudy and increasing winds. Northwest ridgetop winds 20-30 km/h. Overnight alpine low temperature -12 C. Freezing levels valley bottom.

Friday

Clear skies with cloud cover increasing later in the day. Northwesterly ridge winds 15-30 km/h. Alpine high temperature -6 C.

Saturday

Cloudy skies and isolated flurries, trace accumulation. Northeasterly ridge winds 15-30 km/hr.  Alpine temperatures, high of -6. Freezing levels valley bottom.

Sunday

Cloudy skies. Light flurries, up to 5 cm. Northwest ridge winds 20 km/h.  Alpine high temperature -14 C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Approach lee and cross-loaded slopes with caution.
  • Use ridges or ribs to avoid areas of wind loaded snow.
  • Pay attention to the wind, once it starts to blow fresh sensitive wind slabs are likely to form.

Abgedeckte Regionen