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Archived

Avalanche Forecast

Mar 9th, 2025–Mar 10th, 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
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
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 Saturday, a size 2 Storm slab avalanche on a northeast aspect at 1700m was reported in the Big Kahuna area of White Pass.

There has been little avalanche activity reported in the previous few days. If you do observe an avalanche, consider posting a MIN.

Snowpack Summary

10 to 15 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

Sunday Night

Mostly cloudy with 0 to 1 cm of snow. 20 to 30 km/h southeast ridgetop wind. Treeline temperature -9 °C.

Monday

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

Tuesday

Mainly cloudy with isolated flurries. 10 to 20 km/h south ridgetop wind. Treeline temperature -7 °C.

Wednesday

Cloudy with isolated flurries. 30 km/h southeast ridgetop wind. 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