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Avalanche Forecast

Archived

Mar 5th, 2026–Mar 6th, 2026

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

Regions

Northwest Coastal, Boundary, Kitimat, Rupert, Stewart.

New snow, wind and warming temperatures are maintaining dangerous avalanche conditions.

Confidence

Moderate

  • We are uncertain due to how buried persistent weak layers will react with the forecast weather.
  • We are uncertain due to the variability of wind effect on the snowpack.

Avalanche Summary

A widespread natural and explosive-triggered avalanche cycle continued through the week, producing very large avalanches up to size 3.5. Most reported activity occurred on north through east aspects at treeline and alpine elevations. Avalanches ran within the recent storm snow and on buried weak layers.

Natural avalanche activity remains likely as additional snowfall and strong winds continue to add load and stress to the snowpack.

Snowpack Summary

up to 30 cm of new snow in the past 48 hours, has formed widespread storm slabs. North winds veered to moderate sustained southerly winds. Expect to encounter wind slabs on most aspect in the alpine and at treeline at or near terrain below ridge crests.

Since early February, new snow has buried (and continues to load) a variety of old surfaces, including surface hoar, facets, and crusts. This weak layer is most likely in wind-sheltered terrain and is buried roughly 90 to 180 cm deep.

Below this layer, the remaining snowpack is generally well settled and well bonded.

Weather Summary

Thursday Night
Cloudy. 3 to 5 mm of precipitation as snow or rain at treeline. 50 km/h southwest ridgetop wind. Treeline temperature 0 °C.

Friday
Cloudy. 10 to 30 mm of precipitation as snow or rain at treeline. 60 km/h southwest ridgetop wind. Treeline temperature 0 °C.

Saturday
Mostly cloudy. 15 to 35 mm of precipitation as snow or rain at treeline. 60 km/h southwest ridgetop wind. Treeline temperature 1 °C.

Sunday
Mostly cloudy. 10 to 15 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.


More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid avalanche terrain during periods of heavy loading from new snow, wind, or rain.
  • Avalanches could start at higher elevations and travel into below treeline terrain.
  • Remote triggering is a concern; avoid terrain where triggering overhead slopes is possible.

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.

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.