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Avalanche Forecast

Archived

Feb 18th, 2025–Feb 19th, 2025

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

Regions

Glacier.

With the long, snowless drought and the high number of backcountry travelers, it is getting hard to find untracked terrain.

These untouched slopes may be in shallow, rocky zones or otherwise undesirable terrain. Use good judgement and safely evaluate terrain before committing to your line.

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 slowly developing, with a weekend storm on the horizon.

Tonight Cloudy. Alpine low -11°C. Ridge winds S 15km/hr

Wed Isolated flurries late in the day. Trace amounts. Alp high -5°C. Light S wind. Freezing level (FZL) rising to 1300m.

Thurs Cloudy with isolated flurries. Alp high -5°C. Ridge wind SW 20km/h. FZL 1500m.

Fri Flurries. 5-10cm. Alp high -6°C. Ridge wind SW 25-40km/h. FZL 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.