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Archived

Avalanche Forecast

Mar 6th, 2025–Mar 7th, 2025
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
4: High
The avalanche danger rating in the alpine will be high
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Badshot-Battle, Central Selkirk, Goat, Gold, Jordan, Kokanee, North Columbia, North Selkirk, Retallack, Shuswap, South Columbia, Valhalla, Whatshan.

Avoid large, steep features where triggering the persistent problem is still a concern.

Patience and conservative terrain choices are recommended.

Confidence

Moderate

Avalanche Summary

On Wednesday, south of Revelstoke there was a large (size 3) natural persistent slab avalanche on a south aspect at 2500 m. It's suspected to have failed on the late January weak layer.

There were also a few large (size 2) natural and rider-triggered storm slabs that were 20 to 30 cm deep. As well as many small (size 1-1.5) dry loose avalanches, both natural and rider-triggered.

Snowpack Summary

10 to 15 cm of new snow sits on a 3 to 5 cm thick melt-freeze crust that is everywhere except north facing slopes above 2000 m.

A weak layer, composed of facets, surface hoar, or a crust, is found 20 to 60 cm deep. Another persistent weak layer, buried in late January, lies 50 to 110 cm deep. This layer is surface hoar, facets, or a crust, depending on the aspect.

The remaining snowpack is well-settled and strong.

Weather Summary

Thursday Night

Mostly clear skies. 20 to 30 km/h west ridgetop wind. Treeline temperature -8 °C.

Friday

Mix of sun and clouds. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -5 °C. Freezing level 1800 m.

Saturday

Cloudy with 10 to 20 cm of snow. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1600 m.

Sunday

Cloudy with 20 to 40 cm of snow. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1700 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.
  • Be mindful that deep instabilities are still present in the snowpack.
  • Uncertainty is best managed through conservative terrain choices.

Avalanche Problems

Persistent Slabs

Weak layers from January and February persist within the upper 100 cm of snow. Natural avalanche activity has tapered off, however, human-triggering the persistent layers remains a concern.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 2 - 3.5

Storm Slabs

Surface hoar crystals and/or a crust may cause the storm slab to take longer than normal to heal.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2