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Archived

Avalanche Forecast

Apr 5th, 2025–Apr 6th, 2025
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
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

Warm temperatures and strong sun will increase the likelihood of falling cornices and wet loose avalanches.

Confidence

Moderate

Avalanche Summary

On Thursday, a few natural and rider-triggered triggered size 1-2 wind slabs were reported on southerly aspects in the alpine.

NOTE: Observations in this region are currently very limited.

Snowpack Summary

On the surface, up to 20 cm of recent snow exists on northerly aspects in the alpine. Solar aspects and lower elevations will sport a crust or moist snow.

Below this, a 5 to 25 cm variable strength crust from last week's rain event is present. This is capping a moist upper snowpack.

A persistent weak layer from early March, 40 to 80 cm deep, most likely exists as surface hoar on sheltered north and east aspects in the alpine. Its distribution is variable, and there have been no substantial reports of recent avalanches, but it should still be considered when evaluating slopes.

Weather Summary

Saturday Night

Clear. 30 to 50 km/h southwest ridgetop wind. Treeline temperature rising to +3°C. Freezing level 2500 m.

Sunday

Sunny with increasing cloud cover in the afternoon. Possible light flurries or showers 2-4 cm. 30 to 60 km/h southwest ridgetop wind. Treeline temperature +5 °C. Freezing level rising to 3000 m.

Monday

Cloudy, 5 to 10 cm of new snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 1500 m.

Tuesday

Cloudy, 5 to 10 cm of new snow. 30 to 60 km/h southwest ridgetop wind. Treeline temperature +2 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid travelling on slopes below cornices.
  • The more the snowpack warms up and weakens, the more conservative your terrain selection should be.
  • Be careful as you transition into wind-affected terrain.

Avalanche Problems

Loose Wet

Wet loose avalanches are likely on steep solar slopes when the sun is strong.

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

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Cornices

Warm temperatures and strong sun may cause large, destructive cornice failures.

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3