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Archived

Avalanche Forecast

Apr 20th, 2025–Apr 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
1: Low
The avalanche danger rating in the alpine will be low
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
1: Low
The avalanche danger rating in the alpine will be low
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

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

Confidence

Moderate

Avalanche Summary

No new avalanches were reported on Saturday.

NOTE: Observations are currently very limited in this region.

Snowpack Summary

Up to 15 cm of recent snow and moderate variable wind may have formed wind slabs on lee slopes at upper elevations.

This snow overlies a robust crust everywhere except northerly aspects at upper elevations, where previous snow surfaces may have remained dry.

The mid/lower snowpack is well settled and strong.

Lower elevations are melting out rapidly.

Weather Summary

Sunday Night

Coudy with flurries, 3 to 15 cm snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1500 m.

Monday

Mostly cloudy with isolated flurries, 0 to 5 cm snow. 20 to 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1800 m.

Tuesday

Mostly sunny. 10 to 20 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Wednesday

Mix of sun and cloud. 5 to 10 km/h west ridgetop wind. Treeline temperature 1 °C. Freezing level 2100 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.
  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.

Avalanche Problems

Wind Slabs

Forecast snow and variable wind may form wind slabs on lee slopes at upper elevations.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2