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Avalanche Forecast

Archived

Mar 25th, 2025–Mar 26th, 2025

Alpine
Natural and human triggered avalanches likely.
Treeline
Natural and human triggered avalanches likely.
Below Treeline
Natural and human triggered avalanches likely.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.

Regions

Cariboos, Blue River, Clearwater, Premier, Quesnel, Clemina, North Monashee.

Choose simple terrain, free from overhead hazard.

Temperatures are expected to increase, which may cause very large, persistent slab avalanches.

Confidence

Moderate

Avalanche Summary

Large natural avalanches continue to be reported daily, and are expected to continue with high temperatures and sun.

Large wind slabs and persistent slabs, size 2 to 3, were reported on Monday. As well as a few small, wet loose avalanches.

Snowpack Summary

Up to 30 cm of recent snow is expected to become moist as temperatures rise, and the sun comes out. There is a significant concern for small avalanches to step down to deeper persistent weak layers. These consist of surface hoar, facets, or a crust:

  • The early March layer down 50–100 cm. This is the primary weak layer of concern.

  • Mid-Feb & Late-Jan layers down 80–180 cm. These layers are possible to trigger during warm temperatures, or with a large trigger like a cornice fall or avalanche.

Weather Summary

Tuesday Night

Cloudy with 5 to 10 cm of snow. 15 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1700 m.

Wednesday

Cloudy with 0 to 2 mm/cm of rain/snow. 10 km/h southeast ridgetop wind. Treeline temperature 1 °C. Freezing level 2400 to 2700 m.

Thursday

Cloudy with 15 to 30 cm of snow or rain. 25 to 30 km/h southeast ridgetop wind. Treeline temperature -2 °C. Freezing level falling to 1500 m.

Friday

A mix of sun and cloud, clearing. 10 to 20 km/h southeast ridgetop wind. Treeline temperature -2 °C. Freezing level 1700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid exposure to overhead avalanche terrain; avalanches may run surprisingly far.
  • Avoid travelling on slopes below cornices.
  • Recent wind has varied in direction, so watch for wind slabs on all aspects.
  • Very large and destructive avalanches could reach valley bottom.

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.

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.