Bollettino valanghe

Lizard-Flathead

Jan 16, 2019Avalanche Canada
Vedi sulla mappa
Archiviato · scaduto 8 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

Some avalanche danger remains in alpine areas, in wind loaded pockets and on steep, thin/rocky slopes.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Possible
    Dimensione
    1–2
    Small pockets of wind slab could be triggered in steep, wind-affected terrain. Cornices may exist in places too.

  • Deep Persistent Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    2–3
    The possibility of large releases remains in shallow snowpack areas. The chance of triggering is highest on steep rocky alpine slopes that have thin and/or variable snow cover.

Confidence

-

Weather Forecast

TUESDAY NIGHT: Cloudy with clear periods, light wind, alpine temperatures drop to -10 C.WEDNESDAY: Dry with a mix of sun and cloud, light southwest wind, alpine high temperatures around -6 C. THURSDAY: Light snowfall, roughly 4-8 cm, light to moderate southwest wind, alpine high temperatures around -8 C.FRIDAY: Another 5 cm of snow, moderate southwest wind, alpine high temperatures around -4 C.

Avalanche Summary

No new avalanches were reported on Tuesday or Monday.On Saturday, two large snowmobile triggered avalanches were reported on the Mountain Information Network. One was triggered on a thin, rocky, southwest facing feature near ridgecrest north of Fernie (see here for report). The photos tell a compelling story about the structurally weak snowpack that exists in many places in the region. The other was triggered on a wind affected south facing slope at treeline in the Corbin area (see here for report). We're very grateful for people sharing stories about their near misses on the MIN. A natural size 2 deep persistent slab was also observed on a south facing aspect around 2100 m on Saturday.

Snowpack Summary

Recent sunshine and warm alpine temperatures left crusty surfaces on solar aspects while the snow appears to have remained dry on shady aspects. Wind slabs have become difficult to trigger.In shallow snowpack areas, the base of the snowpack may still be composed of weak faceted grains. In deeper snowpack areas, the middle and lower portions of the snowpack are generally considered to be well-settled and strong.

Regioni coperte