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Avalanche Forecast

Archived

Mar 15th, 2025–Mar 16th, 2025

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

Regions

Microwave-Sinclair, North Bulkley, South Bulkley, South Bulkley, South Bulkley, Telkwa.

Human triggering buried weak layers remains possible.

Use extra caution on north-facing slopes at ridgeline where weak layers may be preserved and could be reactive to the weight of riders.

Confidence

Moderate

Avalanche Summary

There has been no new avalanche activity reported in the last few days.

If you head into the backcountry, please consider posting a MIN report with photos and/or observations from your day.

Snowpack Summary

10 to 30 cm of recent new snow has buried a widespread layer of surface hoar, which overlies crust on solar aspects and at low elevations.

A layer of facets, surface hoar and/or a crust buried in mid February is 30 to 50 cm below the snow surface and has been reactive in snowpack tests.

Deeper in the snowpack, a weak layer of facets and a crust from early December can be found. This layer appears to be dormant but is still worth keeping in mind in thin snowpack areas in the alpine.

Weather Summary

Saturday Night

Partly cloudy with light flurries, 1 cm of snow. 20 to 30 km/h south ridgetop wind. Treeline temperature -9 °C.

Sunday

Partly cloudy with light flurries, 2 cm of snow. 20 to 30 km/h southwest wind. Treeline temperature -7 °C.

Monday

A mix of sun and cloud. 25 to 35 km/h northwest wind. Treeline temperature -7 °C.

Tuesday

Cloudy with light flurries, 2 cm of snow. 30 to 40 km/h southwest wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Carefully evaluate steep lines for wind slabs.

Problems

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.