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Avalanche Forecast

Archived

Apr 14th, 2026–Apr 15th, 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 on high north-facing slopes, and around cornices, especially if the sun comes out.

Avalanches on steep, rocky slopes could be surprisingly large.

Confidence

Moderate

  • We are uncertain due to a highly variable snowpack.

Avalanche Summary

On Monday, near White Pass, a large (size 2) human triggered slab avalanche was reported on a northwest aspect in the alpine (at 1800 m). It is suspected to have failed on or stepped down to a layer of weak, feathery surface hoar.

On Friday, a skier remotely triggered a size 2 wind slab on a north-facing slope at 1900 m, failing on a surface hoar layer about 50 cm deep. A similar avalanche was reported just outside the 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 in the daytime sun.

In higher-elevation terrain sheltered from sun and wind, roughly 10 cm of recent snow overlies a mix of older, wind-affected surfaces.

A weak layer of surface hoar persists 50 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

Tuesday Night

Partly cloudy. 20 km/h east ridgetop wind, dropping to calm in the middle of the night. Treeline low -7 °C.

Wednesday

Mostly sunny. 15 km/h southwest ridgetop wind, increasing to 30 km/h through the day. Treeline high -5 °C.

Thursday

Mostly cloudy. 2 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -5 °C.

Friday

Mostly cloudy. 2 to 4 cm of snow. 50 km/h southwest ridgetop wind. Treeline temperature -3 °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 careful as you transition into wind-affected terrain.
  • 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.

Cornices

Cornice Fall is the release of an overhanging mass of snow that forms as the wind moves snow over a sharp terrain feature, such as a ridge, and deposits snow on the downwind (leeward) side. Cornices range in size from small wind drifts of soft snow to large overhangs of hard snow that are 30 feet (10 meters) or taller. They can break off the terrain suddenly and pull back onto the ridge top and catch people by surprise even on the flat ground above the slope. Even small cornices can have enough mass to be destructive and deadly. Cornice Fall can entrain loose surface snow or trigger slab avalanches.