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Avalanche Forecast

Archived

Mar 7th, 2026–Mar 8th, 2026

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

Regions

Kispiox, Ningunsaw.

Dangerous avalanche conditions exist.

Avoid wind-loaded slopes, especially where wind slabs overlie facets or in thin, rocky terrain where persistent slabs are easier to trigger.

Confidence

Moderate

  • We are confident that there are persistent slabs in the snowpack, but uncertain about how likely they are to trigger.

Avalanche Summary

A party observed natural avalanche activity below treeline in the Revision Creek area on Thursday, outlined in this MIN.

There have been very few reports in this region. If you do get out, please consider posting a MIN.

Snowpack Summary

Up to 100 cm of storm snow has accumulated in the past week. In exposed terrain, this snow has been heavily wind-affected by strong southwest winds. In wind-sheltered terrain, the recent snow remains generally low density and may be sitting on a weak layer of surface hoar or a crust.

Variable crust, facet, and/or surface hoar layers, buried throughout February, may exist within the upper 150 cm of the snowpack. These layers are most concerning near and below treeline, especially where the snowpack is shallow. Read more about the persistent slab problem here.

Below these layers, the remaining snowpack is generally well settled and well bonded.

Weather Summary

Saturday Night
Mostly cloudy. 5 to 10 cm of snow. 70 km/h west ridgetop wind. Treeline temperature -7 °C.

Sunday
Mostly cloudy. 1 to 5 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Monday
Mix of sun and clouds. 2 to 3 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Tuesday
Mostly cloudy. 5 cm of snow. 30 km/h south ridgetop wind. Treeline temperature -9 °C.









More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use conservative route selection. Choose simple, low angle terrain with no overhead hazard.
  • Stay off recently wind loaded slopes until they have had a chance to stabilize.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Loose avalanches may step down to deeper layers, resulting in larger avalanches.

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.