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Avalanche Forecast

Archived

Mar 4th, 2026–Mar 5th, 2026

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

Regions

Garibaldi, Homathko, Tantalus, Sky Pilot.

Recent snow arrived with significant southerly winds.

Avalanches could step down to buried weak layers, creating large destructive avalanches.

Confidence

Moderate

  • Persistent slabs could become more likely with the forecast weather.

Avalanche Summary

On Monday, several large (size 2) natural avalanches were observed in wind-loaded north-facing terrain in the alpine. Read the full report here.

Snowpack Summary

Up to 20 cm of recent snow that arrived with strong southerly winds has been redistributed into deeper deposits in wind-loaded areas. This new snow overlies a melt-freeze crust on solar aspects and previously wind-affected surfaces at higher elevations.

30 to 60 cm of storm snow from the past week may be sitting on a layer of surface hoar, facets or a crust.

Another weak layer consisting of a crust with facets from early February is buried 50 to 100+ cm deep.

The remaining snowpack appears to be well settled and bonded.

Weather Summary

Wednesday Night

Cloudy. 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1300 m.

Thursday

Mostly cloudy. 20 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1200 m.

Friday

Cloudy. 10 to 15 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 1100 m.

Saturday

Mostly cloudy. 3 to 4 mm of precipitation. 60 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level 1700 m.

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.
  • Avoid freshly wind-loaded terrain features.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.