Wind Slabs
N
NE
E
SE
S
SW
W
NW
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1–3
New snow accompanied by SW winds will likely help wind slabs to grow larger and more reactive throughout the day day Wednesday.
Bollettino valanghe
Vedi sulla mappaNorthwest Inland
Mar 24 – 25, 2015Avalanche Canada
Archiviato · scaduto 12 years ago
Pericolo valanghe
Thu
Fri
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
1 · Debole
In sintesi
Avalanche hazard will likely be on the rise Wednesday as new snow and wind add fuel to the existing wind slab problem.
Problemi valanghivi
Confidence
Poor - Timing, track, or intensity of incoming weather system is uncertain
Weather Forecast
Wednesday: 2 to 10cm of snow expected above 1300m. Light SE winds at treeline, Strong SW winds at ridgetop.Thursday: Trace of snow. Moderate SW winds at treeline, strong SW winds at ridgetop. Freezing level holding at 1500m.Friday: Freezing level fluctuating between 1000m and 1500m. 1 to 5cm of snow possible. Moderate SW winds at treeline, strong SW winds at ridgetop.
Avalanche Summary
Numerous size 1 loose wet avalanches were reported on Saturday. They failed in steep rocky terrain in response to warming and solar radiation. On Sunday cornice failures to size 2 were reported. Several small wind slabs from immediately lee of ridge crest were reported Monday.
Snowpack Summary
Light accumulations from Friday may now exist as a soft wind slab in high elevation lee terrain. The new snow overlies older wind slabs, crusts and wind-scoured surfaces. Sun-exposed slopes and lower elevation areas are likely in a spring melt-freeze cycle. Weaknesses buried in the upper snowpack may include hard crusts and/or facet crystals, although not much is known about the reactivity or spatial distribution of this layer. At the base of the snowpack, weak facets may be found. Cornices are large and potentially fragile.