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Avalanche Forecast

Mar 18th, 2025–Mar 19th, 2025
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
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
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

Regions: Blue River, Cariboos, Clearwater, Clemina, McBride, North Monashee, Premier, Quesnel, Robson.

Large avalanches are still possible to trigger.

Use safe travel habits and regroup in safe spots.

Confidence

Moderate

Avalanche Summary

On Monday a very large (size 3) natural avalanche was reported near Valemount. 1 small (size 1) avalanche was remotely triggered below treeline on a northwest aspect. Several other small slab and loose dry avalanches were skier-triggered.

Obvious signs of instability are tapering off, but human-triggered avalanches are still possible.

Snowpack Summary

Up to 12 cm of new snow has fallen since Tuesday. A sun crust and/or moist snow can be found on slopes exposed to the sun.

Three persistent weak layers consisting of surface hoar and/or facets are found in the middle of the snowpack. The early March layer is between 60 and 120 cm down. The mid-February layer is between 70 and 150 cm deep and a layer from late January is down 150 cm. In lower elevations, these layers sit over a crust.

Below this, the snowpack is well settled.

Weather Summary

Tuesday night

Few clouds. 20 to 30 km/h southwest ridgetop wind. Treeline temperature -9 °C.

Wednesday

Mix of sun and cloud. 30 to 40 km/h south ridgetop wind. Treeline temperature -7 °C. Freezing level 1500 m.

Thursday

Cloudy with 5 to 10 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -5°C. Freezing level 1500 m.

Friday

Cloudy with 5 to 10 cm of snow. 20 to 40 km/h south ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Even brief periods of direct sun could produce natural avalanches.
  • Be aware of the potential for large avalanches due to buried weak layers.
  • Be especially cautious as you transition into wind-affected terrain.

Avalanche Problems

Wind Slabs

Moderate winds have created wind slabs in the alpine and treeline elevations. These could step down to deeper persistent weak layers.

Aspects: North, North East, East, North West.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1.5 - 2.5

Persistent Slabs

It remains possible that humans could trigger surface hoar and/or faceted grains that were buried early March and mid-February, especially at high elevations where a thick crust doesn't exist above it.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 2 - 3.5