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Archived

Avalanche Forecast

Mar 1st, 2025–Mar 2nd, 2025
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
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
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
2: Moderate
The avalanche danger rating below treeline will be moderate

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

Prolonged warming will keep persistent slabs at their tipping point. Manage this high-consequence snowpack with low-consequence terrain.

Confidence

High

Avalanche Summary

In the past week, numerous natural and rider-triggered wind slab and persistent slab avalanches have been reported, up to size 3.

Evidence indicates wind slabs and persistent weak layers remain primed for human triggering. Similar activity is expected on Sunday with continued warm temperatures and potential for strong sun.

Read more in our Forecasters' Blog.

Snowpack Summary

20 to 50 cm of settling storm snow rests on a weak layer of facets or surface hoar, while elsewhere it overlies a widespread crust. At lower elevations and on sun-exposed slopes, warm temperatures and solar radiation resulted in a crust or moist snow on the surface. Additional weak layers formed in January are found at varying depths within the upper 100 cm of snow. These include weak faceted snow, sun crusts on south-facing slopes, and surface hoar in shaded terrain. Otherwise, the mid and lower snowpack is generally well-settled and strong.

Weather Summary

Saturday Night

A mix of sun and cloud. 5 to 20 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 1500-2000 m.

Sunday

Mostly cloudy with up to 5 cm of new snow. 10 to 30 km/h southwest ridgetop wind. Treeline temperature -2 °C. Freezing level 1500 m-2000 m.

Monday

A mix of sun and cloud. 5 to 15 hm/h north ridgetop wind. Treeline temperature -3 °C. Freezing level rising to 1500 m.

Tuesday

A mix of sun and cloud. 10 to 30 hm/h southwest ridgetop wind. Treeline temperature -6 °C. Freezing level rising to 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Remote triggering is a big concern, be aware of the potential for wide propagations and large, destructive avalanches at all elevations.
  • Be alert to conditions that change with elevation and sun exposure.
  • Even brief periods of direct sun could produce natural avalanches.
  • Stay away from steep slopes, open slopes, and convex rolls at and below treeline where weak layers may be preserved.

Avalanche Problems

Wind Slabs

Southwesterly winds built wind slabs on leeward northerly and easterly slopes. If triggered, wind slab avalanches may step down to deeper layers resulting in larger avalanches.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 2

Persistent Slabs

Weak layers formed in January persist within the upper 100 cm of snow. The more the snowpack warms up and weakens over these layers, the more conservative your terrain selection should be.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1.5 - 3.5