Bollettino valanghe

Jasper

Dec 15 – 16, 2013Parks Canada
Vedi sulla mappa
Archiviato · scaduto 13 years ago

Pericolo valanghe

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

In sintesi

Lee terrain and gully features will have additional slab development over the next few days. Climbers should select their climbs to minimize overhead hazards.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–2
    Strong to extreme gusting winds from the South through to the West will be developing additional windslabs on lee aspects at treeline and on lee terrain features in the alpine.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3
    A small avalanche on a lee aspect may step down to this layer and could go to ground on the facets.

Weather Forecast

A front may bring extreme wind gusts scouring alpine snowpacks on the South and Southwest aspects. Winds may diminish Sunday afternoon with expected light snowfalls through Tuesday.  Colder temperatures are expected later in the week and into the weekend.

Snowpack Summary

Variable wind slab on lee features at treeline and alpine elevations. Alpine regions will be scoured by strong winds in the Icefields. Gusting winds will be moving any available snow that is left. Expect to see additional wind slab development.

Avalanche Summary

Saturday morning's avalanche patrol on Highway 93 did not observe any new avalanches. However a 3rd hand report from climbers on Thursday indicated a size 2 slab release on the middle pitches of polar circus. This slide likely originated from a slab in the gully feature.

Confidence

Intensity of incoming weather systems is uncertain on Sunday

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