Bollettino valanghe

Banff Yoho Kootenay

Dec 20 – 21, 2013Parks Canada
Vedi sulla mappa
Archiviato · scaduto 13 years ago

Pericolo valanghe

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

In sintesi

Basal weaknesses are waking up with the added new snow land wind loading. Avalanche control today again produced large, destructive avalanches.  Use caution in avalanche terrain!

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–3
    Continuing winds acting on loose facets and the remaining storm snow are expected to maintain considerable hazard in the short term.

  • Loose Dry

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–2
    Loose snow can quickly pick up speed and mass in gullied terrain.

Weather Forecast

Increasing wind and moderately cold temperatures forecast for tomorrow will continue snow transport. Occasional light flurries are not expected to affect the forecast.

Snowpack Summary

Faceting and windslabs still dominate the Rockies' snowpack. The deep persistent weak layers are still reactive with additional wind-loading. Triggering overlying slabs is likely and will result in large, destructive avalanches as seen in avalanche control work today.

Avalanche Summary

Lee slopes with an easterly component are deep enough to produce large avalanches. Windslabs over loose facets may be very touchy still. All aspects are producing shallow releases which may run quickly in gullied terrain.

Confidence

Regioni coperte