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Avalanche Forecast

Archived

Apr 14th, 2024–Apr 15th, 2024

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

Regions

North Columbia, South Columbia, Blue River, Clemina, Esplanade, Jordan, North Monashee, North Selkirk, West Purcell, Badshot-Battle, Central Selkirk, Goat, Gold, Retallack, Valhalla, Whatshan.

Triggering slab avalanches in the alpine remains possible, especially on steep or convex slopes.

Avoid steep, rocky, and wind affected areas where triggering slabs is more likely.

Confidence

High

Avalanche Summary

A naturally triggered size 2.5 persistent slab avalanche was reported on an east aspect in the alpine on Saturday. The slab failed on the crust below the most recent storm snow. It was in steep, rocky, wind affected terrain below an alpine ridgetop.

Additionally, numerous naturally triggered wet loose avalanches up to size 2.5 were reported on sunny aspects.

Snowpack Summary

High freezing levels and strong solar radiation have created moist snow on all aspects and elevations.

Up to 40 cm of recent snow has settled rapidly with intense solar radiation and warm temperatures.

Lingering slabs may still be reactive in the alpine, especially on steep or convex terrain features.

A series of crusts exist in the upper snowpack.

Expect difficult travel at lower elevations with thin snow coverage.

Weather Summary

Sunday Night

Mostly clear skies. 20 to 30 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Monday

Mostly sunny. 20 to 30 km/h west ridgetop wind. Treeline temperature 1 °C. Freezing level 2000 m.

Tuesday

Mostly cloudy with isolated flurries, 3 to 5 cm snow. 20 to 30 km/h northwest ridgetop wind. Treeline temperature -5 °C. Freezing level 1500 m.

Wednesday

Mostly sunny. 10 to 20 km/h north ridgetop wind. Treeline temperature -5 °C. Freezing level 1500 m.

Check out the Mountain Weather Forecast for additional weather information.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Be alert to conditions that change with aspect and elevation.
  • Remote triggering is a concern, watch out for adjacent and overhead slopes.
  • Minimize exposure to sun-exposed slopes when the solar radiation is strong.

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.