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Avalanche Forecast

Archived

Dec 14th, 2025–Dec 15th, 2025

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

Regions

Northwest Inland, Kispiox, Microwave-Sinclair, North Bulkley, South Bulkley, South Bulkley, South Bulkley, Telkwa.

The tail end of a warm storm will bring dynamic conditions on Monday. Expect dangerous avalanche conditions at most elevations for most of the day.

Confidence

Low

Avalanche Summary

Observations have been limited. As the storm clears Monday, we're expecting to see evidence of a natural cycle on the weekend; storm slabs at upper elevations, possibly persistent slabs around treeline, and loose wet avalanches at lower elevations.

If you are getting out in the backcountry, consider sharing your observations on the Mountain Information Network (MIN)!

Snowpack Summary

20 to 40 cm of snow fell with strong wind this weekend. A surface crust will form over the day Monday at elevations where the storm ended with rain.

In wind-sheltered areas around treeline, a couple of weak layers of surface hoar are buried 60 to 100 cm deep. These were reactive in snowpack tests last week, but so far we haven't seen evidence of avalanche activity on them.

The mid snowpack contains a crust with small facets above it, but does not present a problem at this time.

The snowpack is around 150 cm deep at treeline, tapering quickly with elevation.

Weather Summary

Sunday night
Partly cloudy. 10 to 20 mm of mixed precipitation. 70 km/h south ridgetop wind. Treeline high temperature +2 °C. Freezing level 1700 m.

Monday
Mostly cloudy. 5 cm of new snow. 50 km/h southwest ridgetop wind. Treeline temperature +2 °C in the morning then cooling to -3 °C. Freezing level 1800 m falling to valley bottom.

Tuesday
A mix of sun and cloud. 5 to 10 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -3 °C.

Wednesday
A mix of sun and cloud. 10 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

  • Be alert to rapidly changing conditions.
  • It's a good day to make conservative terrain choices.
  • Be aware of the potential for large avalanches due to buried surface hoar.
  • A hard crust on the snow surface will help strengthen the snowpack, but may cause tough travel conditions.

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.

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.