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Archived

Avalanche Forecast

Apr 6th, 2023–Apr 7th, 2023
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
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: Babine, East Stikine, Hudson Bay, Kispiox, Microwave-Sinclair, Northwest Inland, Telkwa.

Watch for wind slabs around ridgelines as you gain elevation.

Gradual accumulations of snow this week may create small but reactive wind slabs.

Confidence

High

Avalanche Summary

On Tuesday a size 1 rider triggered wind slab was reported.

Avalanche activity has tapered off but reactivity remains possible on isolated features or where new wind loading is occurring.

Snowpack Summary

Around 20 cm of recent snowfall continues to be redistributed by southerly winds into wind slabs on north facing terrain features. This sits over wind affected surfaces or a crust on south facing slopes that extends into the alpine.

The middle of the snowpack is strong and contains numerous hard crusts. Near the ground, weak faceted crystals exist. There hasn't been avalanche activity on this layer recently, but it remains on our radar as it may become active with abrupt changes to the snowpack, such as rapid loading (heavy snowfall or rain) or prolonged warming.

Weather Summary

Thursday Night

Cloudy, 5-10 cm of snow. Moderate to strong southerly winds, freezing levels around 1000 m.

Friday

Cloudy, 5 cm of snow. Moderate to strong southerly winds, freezing levels around 1000 m.

Saturday

Cloudy with strong to extreme southerly winds. Light snowfall continues. Freezing levels 1000-1500 m.

Sunday

Cloudy with light snowfall. Strong to extreme southerly winds. Freezing levels 1000-1500 m.

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.
  • Carefully evaluate steep lines for wind slabs.
  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

Avalanche Problems

Wind Slabs

Expect small pockets of wind slab in isolated features around ridgelines. Check for wind slab above steep lines or in consequential terrain features.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2