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Avalanche Forecast

Mar 28th, 2025–Mar 31st, 2025
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Waterton, Waterton Lakes.

With cooler temperatures the snowpack is beginning to refreeze but this will take some time. Travel will likely be challenging until a supportive crust forms on the snow surface.

Continue to treat any bigger terrain with caution as the snowpack transitions with this period of cooling.

Confidence

Moderate

Avalanche Summary

Numerous natural wet loose avalanches to size 2, several wet slab avalanches to size 2.5 and a few persistent slab avalanches to size 3 were observed on Wednesday.

Snowpack Summary

10 - 20 cm of new storm overlies a new melt freeze crust and a slowly refreezing snowpack following the warm temperatures earlier this week. The January drought layer lies 50 –130 cm deep, with snow depths at treeline averaging 130–200 cm.

Weather Summary

A passing storm is bringing new snow and cooler temperatures, then clearing on Sunday. See the table below for a more detailed forecast.

Check out the Mountain Weather Forecast for the most up to date information.

Terrain and Travel Advice

  • Carefully evaluate big and steep terrain features before committing to them.
  • Avoid thin areas like rocky outcrops where you're most likely to trigger avalanches on deep weak layers.

Avalanche Problems

Storm Slabs

New snow will likely form small storm slabs in steep terrain, we may also see wind loading in lee features near ridgecrest.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

The reactivity of this layer is likely decreasing with cooling temperatures and a new surface crust forming. However, don't discount this in your decision making, it could take a few days for the upper snowpack to refreeze over this layer and may still be triggerable in the meantime.

Aspects: North, North East, East, West, North West.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3

Loose Wet

New snow will slide easily once the sun comes out.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 1 - 1.5