Bollettino valanghe

Banff Yoho Kootenay

Mar 30 – 31, 2013Parks Canada
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Archiviato · scaduto 14 years ago

Pericolo valanghe

Mon
Tue
Alta quota
1 · Debole
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole
Apri la mappa completa

In sintesi

Conditions are good right now. Cornice falls and afternoon heating will require good timing for your objective. JBW

Problemi valanghivi

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    2–3
    Cornice failures have increased in number as the freezing levels rise. They have been  triggering some slab avalanches, or have enough mass themselves to be a significant avalanche.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2
    Occurring in the afternoons, activity has been mainly isolated to very steep southerly  slopes at tree-line and below. Higher freezing levels this weekend may bring more activity in the alpine.

Weather Forecast

We may see some high cloud on Sunday that could prevent an overnight freeze. Otherwise, fine weather with slowly rising temperatures and freezing levels each day will continue through mid week.

Snowpack Summary

Spring conditions prevail. but it is not quite corn yet on the upper elevation southerly aspects. A 2cm crust is holding everything together while frozen. Northerly aspects are well settled with  some wind slabs. Lower elevations are going through the classic melt freeze daily cycle. Cornices are large and have been observed falling off every day.

Avalanche Summary

Wet afternoon slides have been covering some tracks. Timing is critical. Cornices have been observed falling off as early as 9:00 AM on sun exposed ridges, some of these have triggered deep slabs on the steep/extreme slopes below them.

Confidence

Regioni coperte