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Archived

Avalanche Forecast

Mar 10th, 2025–Mar 11th, 2025
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
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
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: Haines Pass, Tutshi, Wheaton, White Pass East, White Pass West, Yukon.

Back off if you encounter signs of instability like whumpfing, shooting cracks or stiff wind-effected snow. Human-triggered avalanches remain possible.

Confidence

Moderate

Avalanche Summary

On Sunday, snowmobilers remotely triggered a size 2 avalanche in the southern area of the White Pass polygon.

There have also been reports of wind slab avalanches up to size 1.5 releasing naturally on northerly aspects in White Pass.

Snowpack Summary

20-40 cm of new snow has accumulated on various surfaces, including a melt-freeze crust on solar slopes, hard wind-affected surfaces, or faceted snow and surface hoar on shady slopes.

At treeline, there are at least two temperature crusts within the recent storm snow down approximately 45 cm.

A weak layer of facets and a crust from early December is buried 60 to 150 cm deep on all aspects up to 1750 m. This layer has not produced recent avalanche activity or test results and is not currently a concern.

Snow depth varies from 100 cm at highway elevations to over 200 cm in the alpine.

Weather Summary

Monday Night

Mostly cloudy with 0 to 2 cm of snow. 20 to 30 km/h southeast ridgetop wind. Treeline temperature -8 °C.

Tuesday

Mostly cloudy with 0 to 2 cm of snow. 20 to 30 km/h south ridgetop wind. Treeline temperature -9 °C.

Wednesday

Partly cloudy with isolated flurries. 10 to 15 km/h south ridgetop wind. Treeline temperature -7 °C.

Thursday

Partly Cloudy with isolated flurries. calm winds. Treeline temperature -8 °C.

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 freshly wind-loaded terrain features.

Avalanche Problems

Wind Slabs

Small amounts of new snow each day and southerly winds are keeping windslab reactive.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2