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Avalanche Forecast

Archived

Feb 1st, 2025–Feb 2nd, 2025

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

Regions

North Rockies, McBride, Sugarbowl, Kakwa, McGregor, Renshaw, Robson.

Storm slabs remain reactive to riders.

Check out the Forecaster Blog on how to manage conditions.

Confidence

Moderate

Avalanche Summary

One size 2 natural and a few human-triggered avalanches were reported since Friday.

Observations are limited at this time.

Snowpack Summary

Exposed areas are heavily wind-affected. Up to 50 cm of new snow overlies a surface hoar layer in sheltered areas. In sun-exposed terrain, new snow overlies a crust, while elsewhere it sits atop a mix of old wind-affected surfaces and weak, faceted snow.

A widespread crust with facets and/or surface hoar, buried in mid-January, is approximately 60 to 120 cm below the surface.

The mid and lower snowpack is well-settled.

Weather Summary

Saturday night

Cloudy with 0 to 5 cm of snow. 10 to 20 km/h south ridgetop wind. Treeline temperature -25 °C.

Sunday

Mostly cloudy. 10 to 20 km/h east ridgetop wind. Treeline temperature -25 °C.

Monday

Scattered cloud. 20 to 40 km/h east ridgetop wind. Treeline temperature -25 °C.

Tuesday

Few clouds. 10 to 20 km/h east ridgetop wind. Treeline temperature -20 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Make observations and continually assess conditions as you travel.
  • Be aware of the potential for human triggerable storm slabs at lower elevations, even on small features.
  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.
  • The best and safest riding will be on slopes that have soft snow without any slab properties.

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.