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Archived

Avalanche Forecast

Feb 23rd, 2025–Feb 24th, 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
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
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
1: Low
The avalanche danger rating below treeline will be low

Regions: Howson, Kitimat, Nass, Rupert, Seven Sisters, Shames.

Recent storm slabs are likely to remain reactive. Stick to conservative terrain and avoid overhead hazard.

Confidence

Moderate

Avalanche Summary

Natural storm slab and loose snow avalanches size 1 to 2 were reported on Friday.

Looking forward, human-triggered avalanches will remain likely as natural activity subsides.

Snowpack Summary

30 to 60 cm of recent storm snow overlies hard surfaces in wind exposed areas, facets and surface hoar in sheltered terrain, and crust on low elevation solar aspects.

Two layers of surface hoar from January can be found in the top meter of the snowpack.

A layer of facets on top of a crust from early December is buried 100 to 200 cm deep. This layer is generally not a concern in this region.

Weather Summary

Sunday night

Cloudy with 2 to 5 cm of snow above 800 m, light rain below. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Monday

Mostly cloudy with 2 to 5 cm of snow above 1000 m, light rain below. 60 to 80 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Tuesday

Mostly cloudy with 2 to 5 cm of snow above 1000 m, light rain below. 20 to 40 km/h south ridgetop wind. Treeline temperature -2 °C.

Wednesday

Mostly cloudy with 5 to 10 cm of snow above 1200 m, light rain below. 80 to 90 km/h south ridgetop wind. Treeline temperature +1 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • Be aware of the potential for large avalanches due to buried surface hoar.

Avalanche Problems

Storm Slabs

Storm slabs sit on a weak interface and will likely remain reactive.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1.5 - 3

Persistent Slabs

Two surface hoar layers can be found in the top meter of the snowpack in sheltered terrain. They have been unreactive recently, but rapid change due to new snow and warm temperatures may wake them up.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2.5