Avalanche Forecast

Archived

Mar 15th, 2026–Mar 16th, 2026

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 and human triggered avalanches likely.

Below Treeline

Natural avalanches unlikely, human triggered possible.

Alpine

Natural avalanches possible, human triggered probable.

Treeline

Natural avalanches possible, human triggered probable.

Below Treeline

Natural avalanches unlikely, human triggered possible.

Regions

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

New snow and strong southerly winds will build reactive storm slabs on Monday.

Storm slabs have the potential to step down and trigger large, destructive avalanches.

Confidence

Moderate

Deep persistent slabs could become more likely with the forecast weather.
We are uncertain about how quickly persistent slabs are gaining strength.

Avalanche Summary

No new avalanches have been reported in the past few days.

If you head out in the backcountry, let us know what you're seeing by submitting a MIN report.

Snowpack Summary

Sunday Night
Cloudy. 15 to 25 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Monday
Cloudy. 10 to 20 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Tuesday
Mostly cloudy. 15 to 20 mm of precipitation as snow or rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Wednesday
Mix of sun and clouds. 1 to 4 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -2 °C.

Weather Summary

Sunday Night
Cloudy. 15 to 25 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Monday
Cloudy. 10 to 20 cm of snow. 60 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Tuesday
Mostly cloudy. 15 to 20 mm of precipitation as snow or rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature -1 °C.

Wednesday
Mix of sun and clouds. 1 to 4 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -2 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

Be aware of the potential for large avalanches due to buried weak layers.
Storm slab size and sensitivity to triggering will likely increase through the day.
Watch for fresh storm slabs building throughout the day.
As the storm slab problem worsens, the easy solution is to choose more conservative terrain.

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.

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.