Bollettino valanghe

Banff Yoho Kootenay

Feb 11 – 12, 2018Parks Canada
Vedi sulla mappa
Archiviato · scaduto 9 years ago

Pericolo valanghe

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

In sintesi

http://www.pc.gc.ca/apps/scond/cond_e.asp?oid=30728&opark=100092Please continue to avoid avalanche terrain. While natural avalanche activity has tapered, human triggering will continue to be likely. Solar releases can be expected from rocky terrain.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2.5
    Much of the recent storm snow has now been effected by moderate to strong winds at higher elevations. Expect loading on lee features and new wind slab development on exposed slopes.

  • Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Likely
    Dimensione
    2–4
    Three weak layers exist in the mid snowpack: Jan 16, Jan 6, and Dec 15. All are a mix of sun crust, surface hoar and facets depending on the aspect and elevation. These layers are sensitive to triggering both naturally and by human triggering.

Weather Forecast

Colder temperatures will continue through Sunday into the start of the week with little precipitation in the forecast. Wind values will be at threshold for snow transport Saturday night and will die down by Sunday morning. Light cloud cover Sunday with clearing skies for Monday.

Snowpack Summary

Recent storm accumulation of 25-50cm is beginning settle, forming a sportive upper snowpack. The three main mid pack concerns which are the Jan 16th, Jan 6th, and Dec.15 weak layers. These are a mix of facets, crusts and surface hoar and can be found 70cm to over 150cm deep in the snowpack and have producing very large results.

Avalanche Summary

The bulk of the recent avalanche cycle has tapered off. Although less activity has been observed Saturday, reports of the odd size three are still coming in. All avalanche terrain is still highly suspect, and should be avoided.

Confidence

Regioni coperte