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Avalanche Forecast

Archived

Feb 4th, 2024–Feb 5th, 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.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Cariboos, North Columbia, Blue River, Clearwater, McBride, Premier, Quesnel, Clemina, Jordan, North Monashee, Shuswap.

The upper snowpack continues to strengthen with cooling temperatures, though travel conditions remain challenging.

Confidence

Moderate

Avalanche Summary

No recent avalanche activity has been reported.

Snowpack Summary

A widespread crust of varying thickness exists at all elevations. As much as 10 cm of dry snow may sit atop the crust in some areas.

A weak layer consisting of a crust and facets may persist in areas, down roughly 30 to 80 cm from the surface. A second crust exists down roughly 100 cm or more.

The lower snowpack is characterized by weak basal facets in many areas.

Weather Summary

Sunday Night

Mostly cloudy with 0 to 5 cm of snow, northeast alpine winds 0 to 20 km/h, treeline temperature -6 °C.

Monday

Mostly cloudy with trace snow amounts, southeast alpine winds 0 to 20 km/h, treeline temperature -6 °C.

Tuesday

Mostly cloudy with 0 to 5 cm of snow, southwest alpine winds 10 to 30 km/h, treeline temperature -5 °C.

Wednesday

Mostly cloudy with 0 to 3 cm of snow, south alpine winds 10 to 30 km/h, treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
  • Wind slabs may be poorly bonded to the underlying crust.
  • Avalanche hazard may have improved, but be mindful that deep instabilities are still present.

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.

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.