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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.
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

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 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 but high-elevation north aspects. 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 consisting of surface hoar/facets or a crust, is buried 50 to 90 cm and remains a lingering concern. Below this, the mid and lower snowpack is generally settled and strong.

Weather Summary

Sunday Night

Increasing cloud. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1200 m.

Monday

Cloudy. 10 to 25 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level rising to 1600 m.

Tuesday

Increasing cloud with light flurries, 1 to 5 cm of snow. 10 to 25 km/h south ridgetop wind. Treeline temperature -2 °C. Freezing level rising to 1500 m.

Wednesday

Mainly sunny. 5 to 15 km/h northwest ridgetop wind. Treeline temperature -2 °C. Freezing level rising to 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be aware of the potential for large avalanches due to buried weak layers.
  • Be alert to conditions that change with elevation and sun exposure.
  • A hard crust on the snow surface will help strengthen the snowpack, but may cause tough travel conditions.

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.