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Archived

Avalanche Forecast

Mar 7th, 2025–Mar 8th, 2025
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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
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.

Start small and investigate new snow amounts and reactivity as you gain elevation on Saturday. Sheltered slopes should offer the best quality, safest skiing and riding.

Confidence

Moderate

Avalanche Summary

It has been a quiet week for avalanche activity after size 1.5 and size 2 wind slab avalanches observed in White Pass and Haines Summit at the beginning of the week.

Looking forward, wind slabs should increase in size and reactivity as new snow accumulates through Saturday morning. Expect them to be sensitive to rider triggering on Saturday.

Snowpack Summary

By Saturday morning, 10 to 15 cm of new snow should accumulate on a variety of surfaces, including a melt-freeze crust on solar slopes and hard wind-affected surfaces or faceted snow and surface hoar on shady slopes. Strong southwesterly winds will certainly form deeper deposits on leeward slopes.

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

Friday Night

Cloudy with easing flurries bringing about 5 cm of new snow. 40 to 60 km/h southwest ridgetop wind.

Saturday

Partly cloudy with new snow totals of 10 - 15 cm. 20 km/h south ridgetop wind. Treeline temperature -6 °C.

Sunday

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

Monday

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

  • Dial back your terrain choices if you are seeing more than 20 cm of new snow.
  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
  • Seek out sheltered terrain where new snow hasn't been affected by wind.

Avalanche Problems

Wind Slabs

10 -15 cm of new snow and elevated southwest wind will be forming fresh wind slabs in leeward terrain features through Saturday morning. Natural and human triggering is likely.

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2