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Avalanche Forecast

Archived

Mar 9th, 2023–Mar 10th, 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 avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

South Coast, North Shore, Sasquatch, Sky Pilot, Tetrahedron.

Assess steep lines for wind slab. Lingering wind slabs may remain possible to trigger on steep slopes near ridge crests.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported in this region over the past couple days.

Snowpack Summary

A sun crust exists on solar aspects. Recent southeasterly winds formed wind slabs on a variety of aspects at treeline and above. The above mentioned winds have formed large cornices.

These slabs are sitting on a crust that may have small facets associated with it in isolated locations.

The mid and lower snowpack is well-settled and strong.

Check out a recent North Shore Snowpack Update for a visual description of what the snowpack may look like in this region.

Weather Summary

Thursday Night

Cloudy with no new snow expected. Light to moderate east winds and a low of -2°C at 1400 m.

Friday

Mostly cloudy with the possibility of light flurries bringing trace amounts of new snow. Light easterly winds shifting to northwest in the afternoon. High of -3°C at 1400 m.

Saturday

Stormy with 5 to 10 cm of new snow expected. Moderate southerly winds and a high of -4°C at 1400 m.

Sunday

Stormy with up to 20cm of new snow expected. Strong southeast winds and a high of -2°C at 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Carefully evaluate steep lines for wind slabs.

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.