Bollettino valanghe

Jasper

Apr 22 – 23, 2016Parks Canada
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Archiviato · scaduto 10 years ago

Pericolo valanghe

Sun
Mon
Alta quota
Senza grado
Limite del bosco
Senza grado
Sotto il limite
Senza grado

In sintesi

Heavy wet snow expected through the weekend that will fall on a weak isothermal  snowpack.  Expect poor tree-line travel.

Problemi valanghivi

  • Cornices

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2
    All cornices should be suspect for failure with continuing warm temperatures and rain on Friday.
  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–3
    Rain and heavy snow overnight on Friday will continue the loose wet avalanche cycle.
  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    3–4
    This problem primarily remains on alpine slopes as much of the lower snowpack has either melted or is now isothermal.

Weather Forecast

Rain turning to snow overnight with 10 cm possible.  The freezing level will fall on Saturday and will hover around 2200m through the weekend.  Seasonal temperatures with showers expected through the weekend.

Snowpack Summary

Rain changing to snow overnight adding ~10 cm of heavy wet snow. Isothermal conditions exist well into the alpine due to prolonged +3500m freezing level. Expecting a weak overnight recovery above 2500m on Friday night. The persistent slab problem still exists on north facing alpine slopes.

Avalanche Summary

No recent observations however expecting continued loose wet and wet slab avalanches especially with forecasted rain and wet snow through the weekend.

Confidence

Regioni coperte