Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Apr 12th, 2026–Apr 13th, 2026

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

Regions

Yukon, Tutshi, Wheaton, White Pass East, White Pass West.

Use extra caution in north-facing terrain at higher elevations, where wind slabs may be surprisingly reactive due to an underlying surface hoar layer.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

A remotely triggered wind slab avalanche was skier-triggered on Friday on a north-facing slope at approximately 1900 m. The slab failed on the surface hoar layer mentioned in the snowpack summary, buried about 50 cm below the surface.

A second avalanche with very similar characteristics was reported just outside the forecast region in an area with a comparable snowpack.

Snowpack Summary

A variety of surfaces exist across aspects and elevations. Firm, supportive crusts are present at lower elevations and on sun-exposed slopes; these may soften with possible sunny breaks.

In higher-elevation terrain sheltered from sun and wind, a dusting of wind-affected new snow adds to roughly 15 cm of recent snow that overlies a mix of older, wind-affected surfaces.

A weak layer of surface hoar persists 40 to 70 cm below the surface in northerly alpine terrain.

The lower snowpack remains faceted and generally weak, especially in shallow snowpack areas.

Weather Summary

Sunday Night
Partly cloudy. 1 to 4 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Monday
Mix of sun and clouds. 1 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Tuesday
Mix of sun and clouds. 4 to 5 cm of snow. 20 km/h northwest ridgetop wind. Treeline temperature -5 °C.

Wednesday
Mostly sunny. 1 cm of snow. 20 km/h southwest ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Be aware of the potential for remote triggering and large avalanches due to buried surface hoar.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

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.

Deep Persistent Slabs

Deep Persistent Slab avalanches are the release of a thick cohesive layer of hard snow (a slab), when the bond breaks between the slab and an underlying persistent weak layer deep in the snowpack. The most common persistent weak layers involved in deep, persistent slabs are depth hoar or facets surrounding a deeply buried crust. Deep Persistent Slabs are typically hard to trigger, are very destructive and dangerous due to the large mass of snow involved, and can persist for months once developed. They are often triggered from areas where the snow is shallow and weak, and are particularly difficult to forecast for and manage.