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Avalanche Forecast

Archived

Feb 19th, 2025–Feb 20th, 2025

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.

Regions

Glacier.

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

As the storm builds avalanche hazard will increase.

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.

Problems

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.