Avalog
Register
Get forecast notifications
Create an account to receive email notifications when forecasts are published.
Register
Login
Archived

Avalanche Forecast

Jan 9th, 2025–Jan 10th, 2025
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold
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
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Tutshi, Wheaton, White Pass East, White Pass West, Yukon.

UPDATED AT 07:45 AM. The snowpack needs time to adjust to the new snow load. Use cautious route-finding and avoid alpine terrain.

Confidence

Moderate

Avalanche Summary

Observations during the storm have been limited due to poor visibility. On Wednesday and Thursday our field team observed size 1-2 storm slab avalanches.

On Tuesday, they remotely triggered a large (size 2) storm slab near the Fraser Chutes, which stepped down to the persistent weak layer. Check out their MIN report.

Snowpack Summary

Light snowfall continues to accumulate. Since the start of the week, around 50 cm has fallen. Strong southerly winds have formed deeper deposits on northerly aspects.

The recent snow sits over a 20 to 30 cm thick layer of old faceted snow. Below 1700m, these facets sit over a crust. Recent avalanches have been observed to have failed on this layer.

The rest remainder of the snowpack is well bonded and settled. Snowpack depths range from about 100 to 180 cm.

Weather Summary

Thursday Night

Cloudy with 10 to 20 cm of snow. 50 to 70 km/h south ridgetop wind. Treeline temperature -3 °C. Freezing level 700 m.

Friday

Cloudy with around 5 cm of snow. 40 to 60 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 500 m.

Saturday

Mostly cloudy with up to 5 cm of snow possible. 50 to 80 km/h south ridgetop wind. Treeline temperature -1 °C. Freezing level 700 m.

Sunday

Mostly cloudy with up to 5 cm of snow possible. 60 to 90 km/h south ridgetop wind. Treeline temperature -2 °C. Freezing level 700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Travel in alpine terrain is not recommended.
  • Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
  • Use conservative route selection and resist venturing into complex terrain.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.

Avalanche Problems

Storm Slabs

50 cm of recent snow and mild temperatures have created reactive storm slabs with potential to step down to deeper layers.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2.5

Persistent Slabs

A layer of facets over a crust formed in early December could produce large avalanches if triggered.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1.5 - 2.5