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Avalanche Forecast

Archived

Jan 30th, 2024–Jan 31st, 2024

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

Regions

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

The upper snowpack has been rain-soaked and weakened, and it will remain so in areas with above-freezing temperatures.

Confidence

Moderate

Snowpack Summary

The upper snowpack remains largely saturated and weakened by recent rain. In the alpine, the snow surface may have begun to refreeze.

The mid and lower snowpack consists of variable layers of crusts and faceted snow.

Overall the snowpack remains unusually shallow and continues to melt at lower elevations.

Weather Summary

Tuesday Night

Partly cloudy with no precipitation, south alpine winds 20 to 40 km/h, freezing level around 2200 m.

Wednesday

Cloudy with trace precipitation, south alpine winds 20 to 40 km/h, freezing level around 2000 m.

Thursday

Cloudy with up to 5 mm of a mix of rain and snow, south alpine winds 10 to 30 km/h, freezing level around 1800 m.

Friday

Mostly cloudy with no trace snow amounts, southwest alpine winds 10 to 30 km/h, freezing level around 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • If triggered loose wet avalanches may step down to deeper layers resulting in larger avalanches.
  • Avoid areas with overhead hazard.

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.