Bollettino valanghe

Sea To Sky

Jan 1, 2017Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 10 years ago

Pericolo valanghe

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

In sintesi

Relatively light amounts of new snow may form wind slabs behind exposed features. These could become touchy if they are kissed by the sun on south aspect slopes.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–3
    Wind slabs remain from recent loading by new snow and wind on exposed lee slopes. Watch for "reverse loading" on less commonly loaded south aspect slopes. Denser slabs found on south aspect slopes could be made more unstable by the sun.

Confidence

High -

Weather Forecast

SUNDAY: Clearing following some light snow overnight. Winds northeasterly around 40 km/h. Treeline temperatures around -8C.MONDAY: Dry and sunny. Winds northeasterly 30 km/h. Temperatures around -10C.TUESDAY: Dry and sunny. Winds northeasterly 30 km/h. Temperatures around -12C.

Avalanche Summary

Early on Friday a few natural slab avalanches to size 2 were reported in storm snow above 1900 m. Explosive control was able to release similar avalanches.

Snowpack Summary

Between Monday and Friday, 70-100 cm of storm snow accumulated in the region. Below the new snow from this week lies the Boxing Day interface which consisted of wind affected surfaces, faceted (sugary) snow, or surface hoar. Recent observations suggest the overlying snow is generally well bonded to this interface. Recent weaknesses in the snowpack have been isolated to storm snow interfaces. Recent strong winds have been from a variety of directions and have been loading leeward and cross loaded features in wind exposed terrain. The mid-December interface is now down 100-150 cm and is generally considered to be stable in this region.

Regioni coperte