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Avalanche Forecast

Archived

Apr 22nd, 2024–Apr 23rd, 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, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

South Coast, Powell River, North Shore, Sasquatch, Sasquatch, Sky Pilot, Tetrahedron, Coquihalla, Harrison-Fraser, Manning, Skagit.

Assess steep lines for wind slabs before committing.

Forecast confidence is limited this time of year due to few observations.

Confidence

Moderate

Avalanche Summary

No new avalanches have been reported. We expect small slabs may have occurred on Sunday with the fresh snow and strong winds.

If you have any recent photos or observations, please submit them to the Mountain Information Network, observations are limited in the spring.

Snowpack Summary

On high north facing terrain up to 30 cm of dry snow over a crust may be found.  A new crust will likely be found on all other aspects and elevations. This crust will likely become moist throughout the day with rising temperatures and solar input.

Below treeline terrain is snow free or has very low snow cover. Travel conditions are challenging with exposed rocks, stumps, and open creeks.

Weather Summary

Monday Night

Clear skies. 10 to 20 km/h south alpine wind. Freezing level around 2100 m.

Tuesday

A mix of sun and cloud. 10 to 20 km/h southeast alpine wind. Freezing level around 2400 m.

Wednesday

Cloudy with up to 2 cm of new snow at higher elevations. 15 to 30 km/h southwest alpine wind. Freezing level around 2000 m.

Thursday

Cloudy with up to 10 cm of new snow at higher elevations. 10 to 20 km/h southwest alpine wind.  Freezing level around 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be carefull around freshly wind loaded features.
  • Small avalanches can have serious consequences in extreme terrain. Carefully evaluate your line for wind slab hazard before you commit to it.
  • Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet
  • Expect shallow snow cover that barely covers ground roughness.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

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.