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Avalanche Forecast

Archived

Jan 31st, 2025–Feb 1st, 2025

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

Regions

Cariboos, North Columbia, South Columbia, Blue River, Clearwater, Premier, Quesnel, Clemina, Esplanade, Jordan, North Monashee, North Selkirk, Central Selkirk, Gold.

Expect dangerous avalanche conditions through the weekend.

The new Forecaster Blog outlines how to manage changing conditions.

Confidence

Moderate

Avalanche Summary

We have received a few reports of storm slabs sliding on buried surface hoar.

We expect the frequency and size of avalanches to increase through the weekend.

Snowpack Summary

The new snow has fallen on a variety of old surfaces. There is surface hoar, more prevalent around treeline and below, a crust on sun-facing slopes, and 20 to 30 cm of low-density faceted snow in sheltered areas.

Dry January conditions have created a weak, faceted upper snowpack with multiple surface hoar and crust layers. These layers are a concern with the new snow amounts forecasted.

The mid and lower snowpack remains generally well-settled and strong.

Weather Summary

Friday night

Cloudy with 10 to 20 cm of snow. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Saturday

Mostly cloudy with 5 to 10 cm of snow. 10 to 30 km/h southwest ridgetop wind. Treeline temperature -15 °C.

Sunday

Mostly cloudy with 0 to 5 cm of snow. 10 km/h east ridgetop winds. Treeline temperature - 15 °C.

Monday

Mostly cloudy with 0 to 2 cm of snow. 10 km/h east ridgetop winds. Treeline temperature -17 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Storm slabs in motion may step down to deeper layers resulting in large avalanches.
  • Avoid avalanche terrain during periods of heavy snowfall.

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.