Bollettino valanghe

Banff Yoho Kootenay

May 22 – 23, 2014Parks Canada
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Archiviato · scaduto 12 years ago

Pericolo valanghe

Sat
Sun
Alta quota
Senza grado
Limite del bosco
Senza grado
Sotto il limite
Senza grado
Apri la mappa completa

In sintesi

Regular avalanche bulletins have ended. We will update if there are significant changes. For specific condition information during spring and summer, see Parks Mountain Safety, the Mountain Condition Reports or contact Visitor Safety at 403-762-1470.

Problemi valanghivi

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    With warm temperatures cornices will become weak and fail. Minimize your exposure to cornices and keep a close eye on the temperatures and solar effect on the slopes above you.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–3
    Intense sun, daytime heating or high overnight freezing levels will result in loose wet avalanches out of steep terrain. Start trips early and plan to be out of avalanche terrain before things heat up.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3
    We have seen a lot of avalanche activity on the basal facets during sustained periods of warm temperatures or intense rain and wet snow events up to size 3.

Weather Forecast

Snowpack Summary

Spring conditions exist. After cool clear nights a firm melt freeze crust is present which deteriorates with daytime heating. Below 2200m the snowpack is mostly isothermal. Above 2200m the snowpack is generally supportive with the surface becoming moist with daytime heating. Weak basal facets are still present in many locations.

Avalanche Summary

The last week has seen loose wet slides on steep solar aspects up to size 2.5 with daytime heating. Several cornice failures have been observed. Some slab avalanches have been observed during sustained warming or major rain events and we expect to see more avalanche activity on the basal facets with similar weather events through the spring season.

Confidence

Regioni coperte