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Avalanche Forecast

Archived

Apr 3rd, 2024–Apr 4th, 2024

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

Regions

Sasquatch, Sasquatch, Coquihalla, Harrison-Fraser, Manning, Skagit.

Conditions are significantly different according to elevation.

Wind-affected snow exists at higher elevations, while wet snow is found lower down.

Confidence

Moderate

Avalanche Summary

No recent avalanche activity has been reported. Loose wet avalanches may have occurred Tuesday on steep slopes at lower elevations with moderate rain and wet snow.

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

Snowpack Summary

10 to 15 cm of new snow has accumulated over moist snow or a crust on all aspects, except north-facing alpine slopes where dry snow was found before the storm. The mid and lower snowpack are generally well-bonded.

Weather Summary

Wednesday Night

Partly cloudy with isolated flurries, 0 to 2 cm of accumulation. 10 to 20 km/h northeast ridgetop wind. Treeline temperature -4 °C. Freezing level 1000 m.

Thursday

Partly cloudy with isolated flurries. 30 to 40 km/h northeast ridge top wind. Treeline temperature rising to +2 °C. Freezing level 1500 m.

Friday

Partly cloudy with isolated flurries. 30 to 40 km/h northeast ridge top wind. Treeline temperature rising to +3 °C. Freezing level rising to 1800 m.

Saturday

Cloudy with 3 to 5 cm of snow. 20 to 30 km/h southwest ridge top wind. Treeline temperature rising to +2 °C. Freezing level 1500 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.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
  • Remember that in the spring strong solar radiation and warm temperatures can weaken the snow in a matter of minutes.

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.