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Avalanche Forecast

Archived

Feb 20th, 2024–Feb 21st, 2024

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, 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

Cariboos, McBride, Premier, Quesnel, Clemina.

Avoid areas where a small avalanche could drag you into cliffs, trees, rocks, etc and increase the consequence.

As new snow arrives, dial back your terrain choices to lower-angle slopes.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported by the time of publishing on Tuesday.

On Monday there were several small rider-controlled dry loose avalanches reported.

On Sunday, southwest of Mcbride a small (size 1.5) wind slab was remotely triggered from 5 metres away with no involvement.

Snowpack Summary

In treeline terrain that is sheltered from the wind, 15 to 25 cm of settled snow sits above the crust.

South through west aspects are likely stripped down to a thick crust that formed early in February. In general, the crust is strong and supportive to travel below 1900 m. Above 1900 m the crust becomes breakable and tapers out around 2400 m.

On north through east aspects you will likely find old wind slabs on sugary facets over this crust.

Weather Summary

Tuesday Night

Mostly cloudy with 5 to 10 cm of snow. 0 to 10 km/h south ridgetop wind. Treeline temperature -5 °C.

Wednesday

Mostly cloudy with 0 to 5 cm of snow. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1500 m.

Thursday

Mostly cloudy. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1500 m.

Friday

Mostly cloudy. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.

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.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.