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Avalanche Forecast

Archived

Apr 3rd, 2024–Apr 4th, 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

Northwest Coastal, Boundary, Kitimat, Nass, Rupert, Seven Sisters, Shames, Stewart, Howson, Ningunsaw, Ningunsaw, Ningunsaw.

As the recent storm snow settles, the risk of both natural and human-triggered avalanches on steep, sun-exposed slopes will increase throughout the day.

Confidence

Moderate

Avalanche Summary

On Tuesday, a variety of avalanches were reported following the recent storm. These include natural loose wet avalanches at lower elevations and natural or skier-triggered storm and wind slab avalanches at higher elevations. All the reported avalanches were relatively small, none exceeding size 2.

Snowpack Summary

Approximately 40 cm of recent snow has buried a widespread crust in all but sheltered, north-facing slopes where isolated pockets of surface hoar and/or faceted grains may exist below the new snow.

Previously problematic layers deeper in the snowpack appear to have bonded and strengthened, however, there is a low likelihood that they could remain a risk in steep, north-facing, high alpine terrain.

Weather Summary

Wednesday Night

Mostly clear. 0 to 20 km/h northwest ridgetop wind. Treeline temperature -6 °C.

Thursday

Mostly sunny. 0 to 20 km/h north ridgetop wind. Treeline temperature -4 °C.

Friday

Mostly cloudy. 10 to 30 km/h south ridgetop wind. Treeline temperature -4 °C.

Saturday

Cloudy with 2 to 8 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Give the new snow time to settle and stabilize before pushing into bigger terrain.
  • Be especially cautious as you transition into wind affected terrain.
  • Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.