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Avalanche Forecast

Archived

Mar 10th, 2025–Mar 11th, 2025

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.
Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches unlikely, human triggered possible.
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, McBride, Premier, Quesnel, Clemina, North Monashee, Shuswap.

Choose conservative, low consequence terrain and give the storm snow time to bond

Rider triggering of avalanches remains possible, or even likely in areas that received more recent snow

Confidence

Moderate

Avalanche Summary

Several storm slab avalanches up to size 2 were reported on Sunday. These avalanches were skier and naturally triggered on a variety of aspects and elevations.

Observations in the region were limited over the weekend. More avalanche activity could have taken place.

Snowpack Summary

Recent snowfall amounts in the region are variable, 15 to 50 cm has fallen with strong southwest winds, forming deeper deposits on north and east aspects. This new snow overlies a crust on all aspects and elevations except north facing slopes above 1600 m. Surface hoar could also be found at this interface on sheltered features.

A weak layer, composed of facets, surface hoar, or a crust from mid February, is found 50 to 100 cm deep.

The remaining snowpack is well-settled and strong.

Weather Summary

Monday Night

Mostly cloudy with up to 10 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -9 °C.

Tuesday

Mostly cloudy with 0 to 5 cm of snow. 15 to 30 km/h southwest ridgetop wind. Treeline temperature -6 °C.

Tuesday

Cloudy with 5 to 15 cm of snow. 20 to 40 km/h southeast ridgetop wind. Treeline temperature -3 °C.

Wednesday

Cloudy with 5 to 15 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Don't let storm day fever lure you into consequential terrain.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Make observations and continually assess conditions as you travel.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.

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.