Avalanche Forecast

Archived

Apr 9th, 2026–Apr 10th, 2026

Alpine

Natural avalanches unlikely, human triggered possible.

Treeline

Natural avalanches unlikely, human triggered possible.

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.

Sun can quickly change snow conditions. Avoid steep slopes if the snow is moist, and stay clear of cornices, which may weaken and threaten slopes below.

Confidence

Moderate

We are uncertain about how the timing or intensity of solar radiation will affect the snowpack.

Avalanche Summary

No new avalanches have been reported.

Snowpack Summary

In the alpine, up to 15 cm of dry, wintery snow sits above a variety of old snow surfaces. A buried surface hoar layer may remain intact on sheltered northerly terrain and hard wind-pressed surfaces, wind slab, and sastrugi exist on exposed slopes. A melt-freeze crust can be found from 1200 to 1500 m on all aspects but north. This will be firm in the am and may soften by the afternoon.

The lower snowpack is faceted and generally weak, particularly in shallow areas.

Weather Summary

Thursday Night
Mostly cloudy. 1 cm of snow. 20 km/h east ridgetop wind. Treeline temperature -3 °C.

Friday
Sunny. 30 km/h east ridgetop wind. Treeline temperature -5 °C.

Saturday
Sunny. 20 km/h east ridgetop wind. Treeline temperature -5 °C.

Sunday
Mostly sunny. 30 km/h south ridgetop wind. Treeline temperature -4 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

Wind slabs are isolated, but may remain reactive.
Avoid shallow, rocky areas where the snowpack transitions from thick to thin.
Limit exposure to steep, sun exposed slopes, especially when the solar radiation is strong.
Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.

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.