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Avalanche Forecast

Archived

Mar 2nd, 2025–Mar 3rd, 2025

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

Regions

North Columbia, South Columbia, Jordan, North Selkirk, Badshot-Battle, Central Selkirk, Goat, Gold, Kokanee, Retallack, Valhalla, Whatshan.

Dry snow may remain in high elevation northerly terrain however, this is where triggering weak layers is most likely. Manage this high-consequence snowpack with low-consequence terrain.

Confidence

High

Avalanche Summary

On Saturday, numerous natural and human-triggered avalanches were reported up to size 3.5 across various elevations and aspects. Many of these avalanches failed on the late January persistent weak layer.

Natural avalanche activity is expected to taper off on Monday as temperatures cool; however, human triggering potential will persist.

Read more in our Forecasters' Blog.

Snowpack Summary

Above 1500 m, a few centimeters of snow accumulates atop a melt-freeze crust, which covers surfaces on all aspects except northerly slopes above 2000 m where surfaces remained dry. Below 1500 m, the snow surface may remain moist.

A weak layer is found 30 to 50 cm down and is composed of facets, surface hoar, or a crust. Another persistent weak layer, buried in late January, lies 50 to 100 cm deep across the region. This layer also consists of surface hoar/facets or a crust, depending on aspect.

The remaining snowpack is well-settled and strong.

Weather Summary

Sunday Night

Increasing cloud. 25 to 35 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1300 m.

Monday

Mainly cloudy with light flurries, 2 to 6 cm of snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -2 °C. Freezing level rising to 1600 m.

Tuesday

A mix of sun and cloud. 10 to 25 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level rising to 1500 m.

Wednesday

Mostly cloudy with light flurries, 5 to 10 cm of snow. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -4°C. Freezing level rising to 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be mindful that deep instabilities are still present in the snowpack.
  • Avoid areas with a thin or variable snowpack.
  • Avoid shallow snowpack areas, rocky outcrops, and steep terrain where triggering is most likely.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.

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.