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Avalanche Forecast

Archived

Apr 2nd, 2025–Apr 3rd, 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 possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

North Rockies, Sugarbowl, East Kakwa, Kakwa, McGregor, Pine Pass, Tumbler.

Small slabs may be present in the alpine and are most likely to trigger in wind affected terrain.

Confidence

Moderate

Avalanche Summary

On Tuesday, a few naturally triggered size 1 wind slabs were reported on southerly aspects in the alpine.

NOTE: Observations in this region are currently very limited.

Snowpack Summary

Up to 20 cm of recent snow overlies a crust in most areas, except shady aspects in the alpine where soft or wind affected dry snow may be found. Recent snow amounts taper with elevation.

A persistent weak layer from early March, 40 to 80 cm deep, most likely exists as surface hoar on sheltered north and east aspects in the alpine. Its distribution is variable, and there have been no substantial reports of recent avalanches, but it should still be considered when evaluating slopes.

Weather Summary

Wednesday Night

Partly cloudy. 10 to 20 km/h north ridgetop wind. Treeline temperature -8 °C. Freezing level valley bottom.

Thursday

Sunny. 5 to 10 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1400 m.

Friday

Sunny. 10 to 20 km/h west ridgetop wind. Treeline temperature 2 °C. Freezing level 2000 m.

Saturday

Sunny. 20 to 30 km/h southwest ridgetop wind. Treeline temperature 5 °C. Freezing level 2600 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.

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.