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Avalanche Forecast

Archived

Apr 10th, 2024–Apr 11th, 2024

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

South Coast Inland, Spearhead, Birkenhead, Duffey, South Chilcotin, Stein, Taseko.

Pay attention to the wind. If it picks up, fresh reactive wind slabs are likely to form.

Use caution in wind-affected terrain, human-triggered wind slab avalanches remain possible.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported in this region over the past few days. However, field observations are currently very limited.

If you go into the backcountry, please consider submitting your observations to the Mountain Information Network. 🙏

Snowpack Summary

Up to 10 cm of new snow will accumulate by the end of the day on Thursday. This overlies up to 30 cm of recent snowfall.

Below the recent snow is a crust everywhere except true north facing terrain at upper elevations.

The facet/crust layer that produced large avalanches during early March is down 80 to 150 cm. It is currently considered to be dormant in most locations.

Many areas below treeline are either snow free or have very thin snow coverage. Expect difficult travel at lower elevations.

Weather Summary

Wednesday Night

Cloudy. 15 to 30 km/h southwest ridgetop wind. Treeline temperature -5 °C. Freezing level 1300 m.

Thursday

Cloudy with 5 to 10 cm of new snow accumulation above the rain-snow line. 20 to 50 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1400 m.

Friday

A mix of sun and cloud. 5 to 15 km/h southwest ridgetop wind. Treeline temperature +1 °C. Freezing level 2000 m.

Saturday

Partly cloudy. 5 to 20 km/h southwest ridgetop wind. Treeline temperature +2 C. Freezing level 2200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Watch for signs of instability like whumpfing, hollow sounds, shooting cracks or recent avalanches.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.