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Avalanche Forecast

Archived

Apr 14th, 2023–Apr 15th, 2023

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural and human triggered avalanches likely.
Treeline
Natural and human triggered avalanches likely.
Below Treeline
Natural avalanches unlikely, human triggered possible.
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 on the wind and new snow amounts. Storm slab reactivity will increase throughout the day. Be prepared to dial back your terrain selection.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported on Thursday but observations are limited this time of year.

We expect that new rider triggerable slabs will form throughout the day.

If you are venturing into the backcountry please consider filling out a Mountain Information Network report.

Snowpack Summary

New snow accompanied by strong southerly wind will form new storm slab with the largest being found on west through east aspects. This new snow will overlie a crust on all terrain except north facing at treeline and above.

Multiple crusts exist in the upper snowpack. Below this is a well settled snowpack.

Weather Summary

Friday Night

Increasing cloud with trace amounts of new snow expected. Light southeast winds and freezing level around 1300 m.

Saturday

Stormy with up to 20 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 southerly winds and Freezing levels rising to 1400 m. Snowline around 1000 m.

Monday

Mostly cloudy with  up to 20 cm of new snow possible. Moderate southeast winds and a high of -3°C at 1200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for fresh storm slabs building throughout the day.
  • Be especially cautious as you transition into wind affected terrain.
  • Minimize your exposure time below cornices.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.

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.