Avalanche forecast

South Rockies

Mar 28 – 29, 2025Avalanche Canada
View on map
Archived · expired 2 years ago

Avalanche danger

Sun
Mon
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low

Highlights

There is uncertainty with the speed of recovery of the snowpack. Maintain conservative terrain choices.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely
    Size
    1.5–2.5

    Where a melt-freeze crust has developed, this layer will be difficult to trigger. With uncertain freezing levels, areas of concern are steep, rocky terrain, where there is no melt-freeze crust.

Confidence

Moderate

Avalanche Summary

A widespread natural avalanche cycle from Tuesday to Thursday involved buried weak layers deep in the snowpack.

Where a surface crust exists, these layers will be difficult to trigger.

Read the Forecaster Blog for an opportunity to reflect on this week's widespread avalanche activity.

Snowpack Summary

Roughly 5 to 10 cm of accumulated recent snow buries a surface crust that can be found on most aspects and elevations, which becomes more supportive as you gain elevation.

The upper snowpack is a mix of refrozen and moist snow depending on elevation, over a generally settled mid-pack that sits on a persistent weak layer of facets from late January buried 70 to 120 cm deep.

Weather Summary

Friday Night

Cloudy with scattered flurries, 3 to 5 cm. 15 to 20 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1300 m.

Saturday

Mostly cloudy with isolated flurries, 2 to 5 cm. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1700 m.

Sunday

Partly cloudy. 10 to 20 km/h northeast wind. Treeline temperatures -1 °C. Freezing level 1800 m.

Monday

Partly cloudy, isolated flurries 2 cm. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1700 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.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.

Regions covered