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Avalanche Forecast

Archived

Jan 13th, 2026–Jan 14th, 2026

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

Regions

Kispiox, Ningunsaw.

Stick to conservative terrain and minimize overhead hazard.

Storm snow likely remains reactive to human triggers, and persistent weak layers hold uncertainty.

Confidence

Moderate

  • Uncertainty is due to the fact that persistent slabs are particularly difficult to forecast.
  • Uncertainty is due to the limited number of field observations.

Avalanche Summary

Natural avalanches continue to be reported, with wet avalanches at lower elevations and wind or persistent slabs to size 2.5 at higher elevations.

Activity includes failures in recent storm snow as well as on deeper weak layers such as the early January surface hoar and the late December crust.

Snowpack Summary

Recent storm totals vary from 80-150 cm throughout the region, heavily redistributed by strong southerly winds at upper elevations and settling rapidly from warm temperatures.

At treeline, recent rain and warm temperatures may have affected the surface snow. As freezing levels fall, new snow could accumulate on moist or wet surfaces. Below treeline, the snowpack may be wet down to the ground.

A layer of surface hoar is buried 40 to 70 cm deep in sheltered treeline features. The mid and lower snowpack is well settled with no current layers of concern. Treeline snow depths throughout the region range from 150 cm to 250 cm.

Weather Summary

Tuesday Night
Mostly cloudy. Generally 5 mm of of precipitation as snow or rain at treeline. On the western boundary of this region, up to 20 mm is possible. 60 km/h southwest ridgetop wind. Treeline temperature 2 °C. Freezing level 1500 m.

Wednesday
Mix of sun and clouds. 3 to 10 mm of precipitation as snow or rain at treeline. 60 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1300 m.

Thursday
Mostly sunny. 30 km/h west ridgetop wind. Treeline temperature -2 °C. Freezing level 600 m.

Friday
Sunny. 20 km/h west ridgetop wind. Treeline temperature 2 °C. Freezing level 3000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
  • Stay off recently wind loaded slopes until they have had a chance to stabilize.

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.