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Archived

Avalanche Forecast

Apr 22nd, 2025–Apr 23rd, 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
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
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

Strong westerly wind may form wind slabs on lee aspects at upper elevations.

Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.

Confidence

Moderate

Avalanche Summary

On Monday, a skier triggered size 1 storm slab was reported on north aspect in the alpine.

NOTE: Observations are currently very limited in this region.

Snowpack Summary

Up to 20 cm of recent snow may be found at upper elevations. This snow overlies a robust crust everywhere except northerly aspects at upper elevations. Strong westerly wind may form wind slabs on lee aspects at upper elevations.

Most terrain has undergone strong melt-freeze cycles, creating a strong, well bonded snowpack. The one exception could be northerly aspects at upper elevations, where deeply buried weak layers may still be present.

Weather Summary

Tuesday Night

Mostly cloudy with isolated flurries, 0 to 3 cm snow. 40 to 50 km/h west ridgetop wind. Treeline temperature -4 °C. Freezing level 1300 m.

Wednesday

Mix of sun and cloud. 20 to 30 km/h west ridgetop wind. Treeline temperature 1 °C. Freezing level 1900 m.

Thursday

Sunny. 5 to 10 km/h south ridgetop wind. Treeline temperature 6 °C. Freezing level 2400 m.

Friday

Sunny. 30 to 40 km/h south ridgetop wind. Treeline temperature 7 °C. Freezing level 2500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.

Avalanche Problems

Wind Slabs

Strong westerly wind may form wind slabs on lee aspects at upper elevations.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2