Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alta montaña
- Límite del bosque
- Bajo el límite del bosque
- Probabilidad
- Possible
- Tamaño
- 1–4
Wind slabs have formed in response to down-valley winds. These may be hard to spot where they are buried with new snow.
Boletín de aludes
Ver en el mapaNorthwest Coastal
Dec 27 – 28, 2012Avalanche Canada
Archivado · caducó 14 years ago
Peligro de aludes
Sat
Sun
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
Lo esencial
Problemas de aludes
Confidence
Fair - Intensity of incoming weather is uncertain for the entire period
Weather Forecast
Friday: Moderate SW winds. Alpine temp around -6. Light snow. Saturday: Light to moderate NW winds. Freezing level at valley bottom. Very light snow.Sunday: Moderate SW winds. Freezing level at valley bottom. Light snow starting late in the day.
Avalanche Summary
A skier triggered a small hard wind slab on a steep north-facing roll near treeline on Tuesday. No avalanches have been reported since then.
Snowpack Summary
Light new snow is landing on variable surfaces including wind slabs and surface facets. Some alpine slopes are heavily scoured. Cornices are fragile. A layer of surface hoar buried in the upper metre of the pack has been observed in the Shames backcountry. The mid-pack is generally well settled. Near the base of the snowpack, a crust/facet layer sometimes gives hard, sudden results in snowpack tests. This weakness is unlikely to be triggered by a single person, but it remains possible with a very heavy load (e.g. cornice fall) or from a thin-spot trigger point.