Bollettino valanghe

Jasper

Jan 21 – 22, 2016Parks Canada
Vedi sulla mappa
Archiviato · scaduto 11 years ago

Pericolo valanghe

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

In sintesi

The snowpack is largely faceted and becoming less supportive, making for difficult travel below treeline. Significant sluffing should be expected in steep terrain which makes group management and terrain selection very important.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–3
    Moderate Southwest wind and new snow will continue to create windslabs in the alpine and at treeline over the course of the week.

  • Loose Dry

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible - Likely
    Dimensione
    1–2
    Loose dry avalanches should be expected in steep terrain, and may entrain significant amounts of snow in gully features.

Weather Forecast

10cm of snow expected throughout the week in a series of light flurries. This snow will be accompanied by moderate Southwest winds. Temperatures expected to rise gradually, reaching a high of -2C in the alpine on Friday, then cooling. Freezing levels will reach 2100m on Friday then drop.

Snowpack Summary

Pockets of wind slab can be found in exposed terrain treeline and above. Recent 10cm of new snow has helped to freshen things up a bit, but along with moderate Southwest winds has increased the likelihood of touchy new wind slabs on lee aspects. Midpack is weak below treeline due to faceting.

Avalanche Summary

Field team ski cut a size 2 loose dry avalanche in steep terrain that ran 400m and entrained snow. This avalanche condition should be expected in steep terrain at treeline and below.

Confidence

Regioni coperte