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Avalanche Forecast

Archived

Mar 3rd, 2025–Mar 4th, 2025

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

Regions

South Okanagan, Shuswap, North Okanagan.

Dry snow may remain in high elevation northerly terrain however, this is where triggering weak layers is most likely. Use caution in these areas and minimize exposure wherever possible.

Confidence

Moderate

Avalanche Summary

On Sunday, sluffing induced by the sun was observed on steep solar aspects.

On Saturday, several natural and human-triggered wet loose avalanches were reported in steep features at treeline and below, up to size 1.5.

A rider triggered size 2, persistent slab avalanche was reported. This avalanche occurred on a west facing slope at 2000 m. See MIN for details.

Snowpack Summary

A melt-freeze crust covers the snow surface on all aspects, except possibly high-elevation north-facing slopes. This overlies 30 to 60 cm of snow that sits above a crust in many areas or surface hoar/facets in wind-sheltered areas.

A weak layer, buried in late January, consists of surface hoar/facets or a crust is found down 50 to 90 cm. This remains a lingering concern. Below this, the mid and lower snowpack is generally settled and strong.

Weather Summary

Monday Night

Mainly clear skies. 5 to 10 km/h southeast ridgetop wind. Treeline temperature -4 °C. Freezing level drops to 1000 m.

Tuesday

Increasing cloud. 10 to 25 km/h south ridgetop wind. Treeline temperature -2 °C. Freezing level rising to 1700 m.

Wednesday

Cloudy with light flurries, 5 to 10 cm of snow. 10 to 25 km/h west ridgetop wind. Treeline temperature -3 °C. Freezing level 1500 m.

Thursday

A mix of sun and cloud. 20 to 25 km/h northwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1600 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.
  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • 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.