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Archived

Avalanche Forecast

Feb 20th, 2025–Feb 21st, 2025
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Brazeau, Churchill, Cirrus-Wilson, Fryatt, Icefields, Jasper, Maligne, Marmot, Miette Lake, Pyramid.

Ice climbers watch for overhead hazard with the warm temperatures,especially if the sun is out.

Confidence

High

Avalanche Summary

A few small loose point release avalanches observed on a field day around Parker Ridge.

Snowpack Summary

Warm temperatures are making the surface snow moist below 1900m and on south facing terrain. The Icefields has wind effect even into treeline while the Bald hills have had noticeably less. In sheltered areas there is roughly 15cm of snow overlying the January 30th layer which is a temperature crust or wind slab depending on the area. The midpack is weak and faceted. The bottom of the snowpack is comprised of large depth hoar.

Weather Summary

Friday

Mainly cloudy with scattered flurries.

Accumulation: 4 cm.

Alpine temperature: High -5 °C.

Ridge wind southwest: 20 km/h gusting to 50 km/h.

Freezing level: 1500m

Saturday

Periods of snow.

Accumulation: 14 cm.

Alpine temperature: Low -8 °C, High -5 °C.

Ridge wind southwest: 20 km/h gusting to 50 km/h.

Freezing level: 1600m

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.
  • Loose avalanches may start small, but they can grow and push you into dangerous terrain.

Avalanche Problems

Wind Slabs

These windslabs may be sitting on top of facets or the January 30th crust.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Loose Dry

Watch for loose avalanches with the warm temperatures and if the sun is out.

Aspects: South East, South, South West, West.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 1.5

Deep Persistent Slabs

Large depth hoar at the bottom of the snowpack. These layers are going to be with us for a long time and pose a low probability, high consequence situation if triggered.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3