Bollettino valanghe

Jasper

Apr 13 – 14, 2014Parks Canada
Vedi sulla mappa
Archiviato · scaduto 12 years ago

Pericolo valanghe

Tue
Wed
Alta quota
2 · Moderato
Limite del bosco
2 · Moderato
Sotto il limite
3 · Marcato
Apri la mappa completa

In sintesi

Spring conditions - travel early and be off slopes before it warms up.  The Maligne Lake Road is closed but will likely open Monday evening.  Expect delays on the Icefields Parkway late in the afternoon.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–3
    Windslabs are present below ridgelines and on cross-loaded features.  No avalanche activity has been observed on these slabs but field teams have not tested bonding.

  • Loose Wet

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    1–2
    A melt freeze crust is present with wet snow beneath. The crust will deteriorate by mid afternoon. Steep solar aspects have the greatest likelihood. 

Weather Forecast

Cold tonight then warm and sunny tomorrow with S winds.  A cool day with flurries is expected Tuesday.

Snowpack Summary

A crust extends from below treeline (TL) to sunny TL aspects. The crust will maintain its strength until it is exposed to prolonged sun and warm temperatures. Wet to moist snow is present below the crust depending on elevation and aspect. Windslabs look thick on all lee alpine and TL slopes. Cornices are large and looming.

Avalanche Summary

Several size 1-2 loose avalanches noted Sunday from alpine to below treeline. They only occurred on the steepest solar aspects and stopped where angle eased. A couple cornice failures were noted in the alpine which did not result in any propagation.

Confidence

Timing or intensity of solar radiation is uncertain on Monday

Regioni coperte