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Avalanche Forecast

Archived

Apr 9th, 2025–Apr 10th, 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.
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.

Wind slabs at upper elevations may be reactive to rider triggering.

Rising freezing levels and brief periods of sun could trigger wet loose avalanches.

Confidence

Moderate

Avalanche Summary

No new avalanche reports received Tuesday.

Wind slabs may exist and be reactivce to rider triggering on north through east facing slopes just below ridgetop. With rising freezing levels, expect conditions to change rapidly, and natural wet loose avalanches or wet slabs are possible at treeline and below.

Snowpack Summary

Up to 20 cm of new snow may exist above 1600 m. This sits above a supportive crust that overlies wet snow. At elevations below 1500 m, the snowpack is isothermal to ground.

Weather Summary

Wednesday Night

Mostly clear with some cloud. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level falling to 1300 m.

Thursday

Cloudy with snow starting in the afternoon 5 to 10 cm. 50 to 70 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2500 m. Freezing level dropping to 1200 m overnight.

Friday

Mix of sun and cloud. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1800 m.

Saturday

Mix of sun and cloud with isolated flurries up to 5 cm. 15 gusting to 45 km/h northwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.
  • Be careful as you transition into wind-affected terrain.
  • Be alert to conditions that change with aspect and elevation.
  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind 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.

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.