Bollettino valanghe

Banff Yoho Kootenay

Dec 30 – 31, 2018Parks Canada
Vedi sulla mappa
Archiviato · scaduto 8 years ago

Pericolo valanghe

Mon
Tue
Alta quota
4 · Forte
Limite del bosco
4 · Forte
Sotto il limite
3 · Marcato
Apri la mappa completa

In sintesi

An avalanche cycle is expected from this weekend's storm. Avalanches are expected to be touchy for a while. Avoid avalanche terrain.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Very Likely
    Dimensione
    1–2.5

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1.5–3
    This problem dominates the central and eastern part of the forecast region and will continue to do so for some time. Natural activity on this layer has decreased but human triggered avalanches on this layer are still possible.

Weather Forecast

The storm should taper by Sunday but some residual avalanche activity is expected. Cooler incoming air is expected to squeeze the last humidity out of the air giving us light flurries on Sunday. Colder conditions on Monday.

Snowpack Summary

The majority of the BYK region is a 40-60cm slab of stiff snow or new windslab overlying 40cm of weak facets and depth hoar. This nasty combination continues to produce whumphing and easy test results. Deeper snowpack areas are stronger, but have a 60-80cm slab over top of the Dec10 surface hoar/facet layer.

Avalanche Summary

Several avalanches were noted on Friday but their extent and size was obscured.

Confidence

Regioni coperte