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Archived

Avalanche Forecast

Apr 17th, 2025–Apr 18th, 2025
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
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
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

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

As the freezing level falls so will avalanche danger

Use extra caution where a thick surface crust doesn't form

Confidence

Moderate

Avalanche Summary

A few natural wind slabs were reported on Monday. These avalanches occurred in the alpine on east and north aspects.

Also on Monday a natural cornice fall was reported on a southeast aspect.. The resulting avalanche was a size 3.

Snowpack Summary

Dry snow may still be found on high north facing terrain. As the freezing level falls a new crust will form on the surface on all other aspects.

Three layers are notable in the snowpack:

  • Surface hoar from mid-March can be found 50 to 100 cm down.

  • A layer of surface hoar from early-March is buried 100 to 150 cm.

  • A layer of facets, surface hoar, and/or a crust from mid-February is buried 100 to 200 cm deep.

Weather Summary

Thursday Night

Mostly clear. 20 to 50 km/h southwest ridgetop wind. Freezing level falling to 1900 m.

Friday

Cloudy with up to 5 cm of snow. 30 to 60 km/h southwest ridgetop wind. Freezing level falling to 1100 m.

Saturday

Mix of sun and cloud with 0 to 2 cm of snow. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Sunday

Mix of sun and cloud with trace amounts of snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Be careful as you transition into wind-affected terrain.

Avalanche Problems

Wind Slabs

Wind slabs may still be found on the highest north terrain.

Aspects: North, North East, North West.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 1.5