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Avalanche Forecast

Archived

Apr 17th, 2026–Apr 18th, 2026

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

Regions

Glacier.

Recent snowfall has created a fresh storm slab, this problem will be most persistent in shaded lee features, especially where the new snow sits on a crust.

The sun is packing a punch this time of year, avoid exposure to solar slopes during the heat of the day.

Confidence

High

  • We are confident due to a stable weather pattern.

Avalanche Summary

There was a report of skier triggered size 2 slab avalanche on the Youngs peak headwall on Thursday. Neighboring areas also reported several skier triggered slab avalanches on alpine north aspects.

On Wednesday there was a natural avalanche cycle on solar slopes. With several slab and loose snow avalanches up to size 2.5 in the highway corridor and in the backcountry.

A group of skiers also reported triggering a size 2 on Video Peak on Wednesday.

Snowpack Summary

A fresh surface crust has formed on all but high north aspects, and is breaking down with daytime warming.

Up to 40cms of new snow sits on top of a variety of previous old spring surfaces - mainly a moist/wet crust, and pockets of dry snow on high N aspects.

Below treeline expect strong diurnal swings, with crust and refrozen tree bombs/avalanche debris in the AM, and soft sticky snow in the PM.

Weather Summary

Stable weather through the weekend, as high pressure sets up over the region.

Tonight Clear periods. Alpine Low -6°C. Freezing level(FZL) Valley Bottom. Light W ridgetop wind.

Sat A mix of sun and cloud. Alpine High 0 °C. FZL 2100m. Light SW wind.

Sun A mix of sun and cloud. Low 0 °C, High 4 °C. FZL 2700m. Gusty strong SW wind.

Mon A mix of sun and cloud. Low 4 °C, High 8 °C. FZL 3000m. Light wind.

Terrain and Travel Advice

  • Give the new snow several days to settle and stabilize before pushing into bigger terrain.
  • Avoid steep, sun-exposed slopes when the air temperature is warm or when solar radiation is strong.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
  • Avoid travelling on slopes below cornices.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.