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Archived

Avalanche Forecast

Apr 4th, 2024–Apr 5th, 2024
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
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: Brandywine, Garibaldi, Homathko, Powell River, Sea To Sky, Sky Pilot, Spearhead, Tantalus.

Strong solar radiation will likely impact the recent storm snow.

Be alert to conditions that change with elevation, wind, and sun exposure.

Confidence

Moderate

Avalanche Summary

On Wednesday, skiers triggered small wind slabs on steep convexities and wet loose avalanches on steep sun-affected slopes at treeline throughout the region. Explosive controls produced several cornice falls, storm slabs and dry loose avalanches up to size 2 around Whistler over the past two days.

If you go into the backcountry, please consider submitting to the Mountain Information Network.

Snowpack Summary

20 to 30 cm of recent storm snow is found above 1600 m with greater amounts in northerly alpine terrain. This overlies a moist snow surface or a crust on all aspects, except north-facing alpine slopes where dry snow remains. Recent northerly winds have created reverse-loading and cross-loading patterns on all alpine slopes. The storm snow is rapidly settling at treeline and becoming moist on solar aspects.

The facet/crust layer that produced large avalanches during early March is buried 150-250 cm deep and is currently considered unreactive.

Weather Summary

Thursday Night

Partly cloudy. 20 to 30 km/h northeast ridgetop wind. Treeline temperature -6 °C. Freezing level 1000 m.

Friday

Mostly sunny. 10 to 20 km/h northeast ridgetop wind. Treeline temperature +2° C. Freezing level 1800 m.

Saturday

Partly cloudy with isolated flurries. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1300 m.

Sunday

Cloudy with 3 to 5 cm of snow. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1300 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Minimize exposure to sun-exposed slopes when the solar radiation is strong.
  • Remember that in the spring strong solar radiation and warm temperatures can weaken the snow in a matter of minutes.
  • Be carefull around freshly wind loaded features.

Avalanche Problems

Loose Wet

Strong solar radiation will affect the recent storm snow. Wet loose avalanches will become likely throughout the day, especially on steep sun-exposed slopes where recent snow overlays a melt-freeze crust.

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

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Wind Slabs

Human-triggering wind slabs will remain possible on steep, unsupported and/or convex terrain features. As recent wind varied in direction, watch for wind slabs on all aspects.

Aspects: All aspects.

Elevations: Alpine.

Likelihood: Possible

Expected Size: 1 - 2