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Avalanche Forecast

Archived

Apr 14th, 2023–Apr 15th, 2023

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

Coquihalla, Harrison-Fraser, Manning, Skagit.

Continually assess conditions as you move through terrain. Rider triggerable wind slabs may still be found on lee and cross loaded features at treeline and above.

Confidence

Moderate

Avalanche Summary

No new avalanches were reported on Thursday but observations are limited this time of year.

If you are venturing into the backcountry please consider filling out a Mountain Information Network report.

Snowpack Summary

A new crust can be found at or near the surface on all but high north facing terrain. Rider triggerable wind slab could still be found in the alpine on west through east aspects.

Several crusts or moist layers can be found in the upper snowpack. A well settled snowpack exists below.

Weather Summary

Friday Night

Increasing cloud with no new snow expected. Increasing southerly winds and a low of -3°C at 1800 m.

Saturday

Cloudy with up to 5 cm of new snow possible. Moderate to strong southerly winds and freezing level rising to 1700 m with the snowline around 1400 m.

Sunday

Cloudy with up to 10 cm of new snow expected. Moderate southerly winds and freezing levels rising to 1900 m. Snowline around 1400 m.

Monday

Mostly cloudy with up to 5 cm of new snow possible. Moderate southeast winds and freezing levels rising to 1600 m with the snowline around 1200 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Minimize your exposure time below cornices.
  • As surface loses cohesion due to melting, loose wet avalanches become common in steeper terrain.

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.