Bollettino valanghe

Jasper

Mar 17 – 18, 2021
Vedi sulla mappa
Archiviato · scaduto 6 years ago

Pericolo valanghe

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

In sintesi

Icefields Parkway will remain closed for maintenance until Thursday afternoon. Check Alberta511 for updated information.

Problemi valanghivi

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1.5–3

    Cornices can be extremely destructive alone or, may initiate deeper layers in the snowpack below.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–3

    More activity noted at this layer, mostly initiated by large loads (cornices) in steep terrain.

  • Loose Wet

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

    Varied sensitivity on solar aspects, likelihood increases on the steepest slopes. It ay nbe possible to trigger deeper instabilities once initiated.

Weather Forecast

Approaching front will bring high light clouds which should filter the UV and keep the surface snow cool. Cold overnight recoveries help to maintain the structure of the snowpack. Isolated sun and clouds will mean localized areas of instability. 

Snowpack Summary

Warm temps and high solar input has created typical spring like conditions with moist snow on solar aspects from daytime heating, TL and below. Continuing SW winds have redistributed the snow pack, forming hard slabs in the ALP. The mid pack is supportive in deep areas, but shallow snowpack areas are weak and will break down fast with temp swings.

Avalanche Summary

Control operations produced several loose wet slabs on previously controlled terrain.

Confidence

Regioni coperte