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Archived

Avalanche Forecast

Mar 28th, 2024–Mar 29th, 2024
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
1: Low
The avalanche danger rating at treeline will be low
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
1: Low
The avalanche danger rating at treeline will be low
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

Regions: Birkenhead, Duffey, South Chilcotin, South Coast Inland, Stein, Taseko.

While the best riding conditions may be found on north facing, alpine slopes - persistent weak layers may still be reactive here.

Choose smaller, low angle slopes to reduce your exposure.

Confidence

Moderate

Avalanche Summary

Last reported activity was a human triggered size 1 wind slab avalanche on Tuesday.

While there has been minimal avalanche activity over the past week, professionals in the region are still weary of the persistent slab problem.

Snowpack Summary

Up to 10 cm of recent snow can be found over a widespread crust, resulting in a mix of soft and hard surfaces. South/southwest winds have redistributed this snow into wind slabs around ridgelines on north facing slopes at treeline and above.

A significant crust/facet layer is buried 80-150 cm deep. This layer produced very large natural and human triggered avalanches in early March. While no recent avalanche activity has been observed on this layer, it continues to produce concerning snowpack test results. It has become a low-probability high-consequence problem on north-facing slopes above 2000 m.

Weather Summary

Thursday Night

Mostly cloudy with isolated flurries. Light and variable ridgetop wind. Freezing level drops to around 800 m.

Friday

A mix of sun and cloud with isolated flurries possible. 5 km/h north ridgetop wind. Treeline temperature -3 °C. Freezing level 1500 m.

Saturday

Mostly sunny. 15 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1800 m.

Sunday

Mostly sunny. 15 km/h west ridgetop wind with strong gusts. Freezing level rises to 2500 m in the afternoon, bringing treeline temperatures to +8 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use caution on large alpine slopes, especially around thin areas that may propagate to deeper instabilities.
  • Conditions may have improved, but be mindful that deep instabilities are still present.

Avalanche Problems

Persistent Slabs

Concern remains for human-triggering a persistent weak layer on sheltered north aspects above 2000 m. If triggered, avalanches will be large and destructive. Avoid shallow snowpack areas where triggering is more likely.

Aspects: North, North East, North West.

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3