Bulletin d’avalanche

Glacier

Feb 20 – 21, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Sat
Sun
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

The weather pattern is changing and snow is on the way!

As the storm builds avalanche hazard will increase.

Problèmes avalancheux

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2.5

    20-50cms of snow overlays a buried persistent weak layer. This weak layer consists of surface hoar, facets and/or a suncrust. It will be most reactive where there is a settled, cohesive slab on top of a crust.

  • Loose Dry

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2

    New snow and facets make up the upper snowpack. As the incoming light snow slowly builds up, it won't take much of a disturbance to initiate a loose avalanche in steep terrain. Manage your sluff accordingly!

Confidence

Moderate

Avalanche Summary

Frequent Flyer in Connaught Creek ran Monday afternoon, size 2, across the skin track, burying ~15-20m of the uptrack up to 50cm deep. Trigger was likely strong solar radiation at ~1pm.

Several loose/dry avalanches up to sz 1 were noted from solar aspects in the hwy corridor during peak hours of strong sunshine.

Neighbouring operations, particularly to the west, are still reporting rider & remote triggered avalanches on the Jan 30th layer.

Snowpack Summary

5-10cm of new snow sits on a faceted, variable hardness upper snowpack.

A weak layer of surface hoar, facets and/or suncrust (Jan 30th) is 20-50cm down. This layer failed easily in snowpack tests at 1700m on the Smart paths. Watch out when this layer gets overloaded!

The Jan 7th layer is down 50-80 and is decomposed surface hoar or a thin crust on South and West aspects. This layer has been inactive recently.

Weather Summary

An active weather pattern is developing with a juicy storm on the horizon.

Tonight Cloudy with flurries, Snow: 4cm . Alpine low -7°C. Ridge winds SW 15km/hr

Thurs Cloudy with isolated flurries. Alp high -6°C. Ridge wind SW 20km/h. FZL 1500m.

Fri Flurries. 8cm. Alp high -6°C. Ridge wind SW 25-40km/h. FZL 1500m.

Sat Snow 20 cms. Alp high -5°C. Ridge wind SW 30 gusting 65 Freezing level (FZL) rising to 1300m.

Terrain and Travel Advice

  • Be careful with sluffing in steep terrain, especially above cliffs and terrain traps.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.

Régions couvertes