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Avalanche Forecast

Archived

Mar 30th, 2026–Mar 31st, 2026

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Sea To Sky, Brandywine, Garibaldi, Homathko, Spearhead, Tantalus, Sky Pilot.

Sheltered, shaded terrain holds the best riding and the lowest avalanche danger.

Space out to avoid exposing multiple people to a slope at once, and give cornices a wide berth.

Confidence

High

  • We have a good understanding of the snowpack structure and confidence in the weather forecast.
  • We are confident due to a stable weather pattern.

Avalanche Summary

On Sunday around Whistler, explosives avalanche control triggered a few small to large (size 1-2) cornice avalanches.

Also, west of Highway 99, small, rider triggered and natural loose dry avalanches were reported in steep terrain.

Snowpack Summary

Wind exposed areas in the alpine and at treeline are generally wind-affected. Around 30 cm of dry, loose snow can be found in sheltered, shaded areas.

Steep south facing slopes may be crusty or moist depending on time of day and sun exposure.

50 to 80 cm of settling snow overlies the thick and hard mid-March crust below about 2200 m, and old wind-affected snow above 2200 m.

The snowpack below the mid-March crust is wet but well settled and strong.

Weather Summary

Monday Night

Mostly clear skies. 10-40 km/h southwest ridgetop wind, with the highest speeds in the north end of the forecast area. Treeline temperature -5 °C.

Tuesday

Mix of sun and clouds. 20-40 km/h southwest ridgetop wind, with the highest speeds in the north end of the forecast area. Treeline high -2 °C (or even above zero around Squamish). Freezing level rising to 1500 m.

Wednesday

Mostly cloudy. 5 to 10 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -3 °C.

Thursday

Mix of sun and clouds. 1 to 3 cm of snow. 10 km/h southwest ridgetop wind. Treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.
  • Travel early on sun-exposed slopes before cornices weaken with daytime warming.
  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.

Problems

Cornices

Cornice Fall is the release of an overhanging mass of snow that forms as the wind moves snow over a sharp terrain feature, such as a ridge, and deposits snow on the downwind (leeward) side. Cornices range in size from small wind drifts of soft snow to large overhangs of hard snow that are 30 feet (10 meters) or taller. They can break off the terrain suddenly and pull back onto the ridge top and catch people by surprise even on the flat ground above the slope. Even small cornices can have enough mass to be destructive and deadly. Cornice Fall can entrain loose surface snow or trigger slab avalanches.

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.