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Avalanche Forecast

Archived

Feb 28th, 2026–Mar 1st, 2026

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

Regions

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

Warm temps, sun, and persistent weak layers are creating tricky conditions

Choose conservative low-angle terrain with no overhead hazard.

Check out this forecaster blog on conditions.

Confidence

Low

  • We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

Friday
A vehicle remotely triggered some small slabs on road banks. Explosive control triggered some small cornices and wind slabs.

Thursday
Explosive control and ski cutting produced a few small wind slabs in lee and crossloaded terrain.

Wednesday
Explosive control triggered two size 2 cornices and ski cuts produced some small wind slabs.

Tuesday
A few human-triggered size 1 to 2 slabs were reported

Snowpack Summary

Strong to extreme southwesterly winds have created widespread wind effect and built wind slabs on lee slopes.

A melt-freeze crust may be found on sunny slopes and at lower elevations. This surface crust will likely soften with sun and daytime warming.

40 to 70 cm of storm snow from the past week may be sitting on a layer of surface hoar, facets or a crust in some areas. How quickly the old storm snow will bond to this layer remains uncertain.

Another concerning weak layer consisting of a crust with facets from early February is buried 80 to 100+ cm deep.

The remaining snowpack appears to be well settled and bonded.

Weather Summary

Saturday Night
Clear skies. 20 km/h northwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1600 m.

Sunday
Sunny. 30 km/h northwest ridgetop wind. Treeline temperature 4 °C. Freezing level 2400 m.

Monday
Mostly sunny. 30 km/h west ridgetop wind. Treeline temperature 3 °C. Freezing level 2200 m.

Tuesday
Mostly cloudy. 15 to 35 mm of precipitation as snow or rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1600 m.



More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.

Problems

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.

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.