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Avalanche Forecast

Archived

Apr 7th, 2026–Apr 8th, 2026

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

Regions

South Rockies, Bull, Crowsnest North, Crowsnest South, Elkford East, Elkford West.

A cooling trend is reducing avalanche danger. However, it remains possible for humans to trigger a buried weak layer that could produce large slab avalanches.

Confidence

Moderate

  • We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

Many small loose wet avalanches released over the past few days.

On Sunday, a very large persistent slab avalanche released naturally near Crowsnest Pass. On Friday, a rider triggered a persistent slab avalanche. See the photos for more information.

A 24 hour period of cold temperatures should reduce the likelihood of triggering avalanches. Remain cautious around thin, rocky features, where triggering a persistent slab remains possible.

Snowpack Summary

Spotty convective flurries yesterday mean fresh snow in some places. Overnight, we expect that wet surface snow below 2100 m and on slopes facing the sun will freeze into a hard melt-freeze crust.

Weak sugary snow above a crust from late March is buried about 50 to 70 cm deep.

Below this, the snowpack is generally well consolidated. However, facets exist at the base of the snowpack in shallow areas near Elkford.

Weather Summary

Tuesday Night

Mostly clear skies. 40 km/h northwest ridgetop wind decreasing to 20 km/h by the morning. Treeline low -8 °C. Freezing level falling to valley bottom.

Wednesday

Sunny. 20 km/h west ridgetop wind. Treeline high 0 °C. Freezing level rising to 2200 m.

Thursday

Mostly sunny. 20 km/h west ridgetop wind. Treeline temperature -3 °C.

Friday

Sunny. 20 km/h west ridgetop wind. Treeline temperature 1 °C. Freezing level 2200 m.



More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Triggering deep layers is more likely if the snow surface didn't freeze overnight.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

Problems

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.