Bollettino valanghe

Banff Yoho Kootenay

Nov 8 – 9, 2013Parks Canada
Vedi sulla mappa
Archiviato · scaduto 13 years ago

Pericolo valanghe

Fri
Sat
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
Senza grado
Apri la mappa completa

In sintesi

Wind slabs are not widespread, but ice climbers should expect to find them in alpine gullies and steep, unsupported ridge top features. SH

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Variable wind slabs can be found in specific terrain features, especially in and around gullies.

Weather Forecast

Continued valley bottom freezing levels with only trace amounts of new snow for Friday through to the weekend. Gusty moderate Westerly alpine winds Friday will decrease on the weekend.

Snowpack Summary

Snow depths are variable across the terrain, and many areas at treeline and below are still below threshold for avalanches. In the alpine, a basal facet layer or melt/freeze crust from late Oct. can be found. Above, wind slabs 30-60cm thick, varying from soft to hard can are in isolated terrain features such as gullies and immediate lee terrain.

Avalanche Summary

Sunshine Village produced 2 size 1.5 avalanches in the alpine on N aspects with ski cutting. These were 40-60cm deep and ran on the Oct. melt/freeze crust.  While small, one of the slides ran for 300m which would be a big concern on an ice climb. Lake Louise ski hill saw similar conditions.

Confidence

Regioni coperte