Bollettino valanghe

Banff Yoho Kootenay

Feb 28 – Mar 1, 2018Parks Canada
Vedi sulla mappa
Archiviato · scaduto 9 years ago

Pericolo valanghe

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

In sintesi

In general the snowpack is strong and we have seen the mid snowpack weak layers gain significant strength over the past two weeks. RIght now the main issue is windslabs in leeward pockets from the past 48 hours - they are small but could catch you.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Fresh wind slabs exist in lee areas in the alpine. While they may not be very thick or particularly touchy, they certainly have the potential to carry you into an undesirable location (cliffs/terrain traps) if triggered in steep terrain.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely
    Dimensione
    2–3
    We continue to track three mid-snowpack weak layers from earlier this winter. They are bonding well and test results no longer show failures here. This problem continues to be in the back of our minds, but our confidence in the snowpack has improved.

Confidence

Weather Forecast

Minor warming trend over the next few days, with highs reaching -2 by Thursday.  Otherwise expect light flurries with no significant accumulations over the next few days.  Overnight Tuesday will continue to be windy, with winds shifting to the southwest and slowing down on Wednesday.

Snowpack Summary

5 cm of loose snow on the surface at treeline with wind slabs forming in open areas at higher elevations. Three mid-pack weak layers of surface hoar and/or facets appear well bonded, but are worth keeping in mind on bigger slopes. Snowpack tests are showing no results on those layers.

Avalanche Summary

Windslabs us to size 1.5 from explosives control at Sunshine Village.  Otherwise no new avalanches reported.

Regioni coperte