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Archived

Avalanche Forecast

Apr 5th, 2024–Apr 6th, 2024
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
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, Clemina, Kakwa, McBride, Premier, Quesnel, Renshaw, Robson.

Keep your guard up as you get into open, wind-affected terrain. Large natural and human-triggered wind slabs have occurred in the alpine in recent days.

Confidence

Moderate

Avalanche Summary

On Wednesday, operators in the region reported natural and remotely triggered wind slabs up to size 2.5 on north and west aspects in the alpine. These large remotely triggered avalanches are a strong indicator of an unstable snowpack!

Similar activity may continue and riders should continue to avoid wind-loaded areas in the alpine and treeline.

Snowpack Summary

At upper elevations, 10 to 40 cm of recent snowfall has been redeposited by strong winds. Below this, small facets have been found that overlie a hard crust. The hard crust is located on all aspects and at all elevations elevations, with the exception of north-facing slopes over 2000 m.

A layer of weak faceted snow above a crust formed in early February is now buried 50 to 120 cm deep. This layer is generally getting stronger and is shielded by crusts above it. It has not produced any recent avalanches.

Weather Summary

Friday Night

Cloudy with clear periods. Ridge wind 15 to 30 km/h from the southwest. Treeline temperatures drop to -6 °C. Freezing level drops to valley bottom.

Saturday

A mix of sun and cloud. Ridge wind light from the southwest. Treeline temperatures reach a high of 0 °C. Freezing level rises to 1800 m.

Sunday

A mix of sun and cloud with isolated flurries. Ridge wind 15 to 30 km/h from the southwest. Treeline temperatures reach a high of 0 °C. Freezing level rises to near 2000 m.

Monday

Mostly cloudy with light flurries. Ridge winds 20 to 40 km/h from the southwest. Treeline temperatures reach a high of 0 °C. Freezing level rises to near 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Avoid areas where the snow feels stiff and/or slabby.
  • Remote triggering is a concern, watch out for adjacent and overhead slopes.

Avalanche Problems

Wind Slabs

Up to 40 cm of recent snowfall was accompanied by strong southwest winds forming reactive wind slabs in the alpine. Winds have shifted to the northeast and may form fresh wind slabs in an atypical, reverse-loading pattern.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 2.5