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Archived

Avalanche Forecast

Feb 22nd, 2024–Feb 23rd, 2024
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
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
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: East Kakwa, Kakwa, McGregor, North Rockies, Pine Pass, Renshaw, Robson, Sugarbowl, Tumbler.

Keep an eye on conditions throughout the day and be prepared to fall back to more conservative terrain.

Wind slab size and sensitivity will increase throughout the day.

Confidence

High

Avalanche Summary

Only small dry loose avalanches in steep terrain have been reported in the past couple days.

We expect wind slab avalanches to be rider triggerable in areas that receive more than 10 cm on Friday.

Snowpack Summary

Up to 20 cm of new snow could accumulate throughout Friday. This will add to the 5 cm that buried a variety of surfaces including surface hoar  and facets in sheltered terrain, a crust on south and west facing slopes as well as old wind slab on exposed terrain.

The widespread crust buried in early February is down 5 to 40 cm. This crust may have a layer of facets above it.

The remainder of the snowpack is settled and not concerning.

Weather Summary

Thursday Night

Clear skies. 40 to 60 km/h southwest alpine wind. Treeline temperature -4°C.

Friday

Cloudy with up to 20 cm of new snow. 40 to 70 km/h west alpine wind. Treeline temperature -4°C.

Saturday

Cloudy with 5 to 15 cm of new snow. 30 to 50 km/h southwest alpine wind. Treeline temperature -7°C.

Sunday

Mostly cloudy with up to 20 cm of new snow. 15 to 35 km/h northwest alpine wind. Treeline temperature -6°C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Fresh wind slabs will likely form throughout the day, diligently watch for changing conditions.
  • Wind slabs are most reactive during their formation.
  • Wind slabs may be poorly bonded to the underlying crust.
  • Seek out sheltered terrain where new snow hasn't been wind-affected.

Avalanche Problems

Wind Slabs

West winds and new snow wil form wind slabs throughout the day. These slabs will be most reactive where they overlie surface hoar, facets or a crust. During periods of strong winds slabs may be further down slope than expected.

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2