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Avalanche Forecast

Archived

Apr 13th, 2023–Apr 14th, 2023

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

Regions

South Coast, Powell River, North Shore, Sasquatch, Sasquatch, Tetrahedron.

Keep an eye out for conditions that change with aspect, elevation, and time. The snow surface will vary throughout the terrain and will change as solar input does it's thing.

Confidence

Moderate

Avalanche Summary

On Wednesday small natural and skier triggered wet loose avalanches were observed at lower elevations and on solar aspects. Check out this MIN.

During the storm last weekend some large and deep avalanches released naturally. We are not currently concerned about these type of avalanches but will keep it in mind for the future. Check out the min.

Snowpack Summary

On sheltered north facing slopes above 1100 m up to 20 cm of soft snow can still be found. Wind slabs may still be found near ridge crests in this same terrain. On all other slopes a crust will likely be found on or near the surface. A well settled snowpack exists below this.

Weather Summary

Thursday Night

Mostly clear with no new snow expected. Light northwest winds and a low of -3°C at 1200 m.

Friday

Mostly sunny with no new snow expected. Light variable winds and a high of -1°C at 1200 m.

Saturday

Stormy with up to 10 cm of new snow expected at treeline and above. Moderate to strong southerly winds and freezing levels rising to 1300 m with the snowline around 1000 m.

Sunday

Stormy with 30 to 50 cm of new snow expected. Strong to extreme southerly winds and Freezing levels rising to 1400 m. Snowline around 1000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be especially cautious as you transition into wind affected terrain.
  • Be alert to conditions that change with aspect and elevation.
  • Minimize your exposure time below cornices.
  • As surface loses cohesion due to melting, loose wet avalanches become common in steeper terrain.

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.