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Avalanche Forecast

Archived

Mar 10th, 2026–Mar 11th, 2026

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

Regions

Jordan, Gold, Retallack, Valhalla, Whatshan.

Wind slabs are the primary concern. Watch for soft pockets of fresh wind slab in leeward terrain features at upper elevations.

Confidence

Moderate

  • We are uncertain about forecast snowfall amounts.
  • We are uncertain whether the wind will be enough to form new wind slabs.

Avalanche Summary

During the storm on the weekend, a widespread natural avalanche cycle occurred, size 2-3. These included storm slabs on all aspects and elevations, loose wet treeline and below, and persistent slabs on mostly on north to east aspects at alpine and treeline elevations.

Since then, avalanche activity has been predominantly wind slabs, size 1-2, triggered naturally and by ski cuts on north to east aspects at alpine and treeline elevations.

Snowpack Summary

10-30 cm of snow continues to accumulate with light wind effect. It sits over firmly wind-sculpted surfaces or a crust which extends up to 1900 m near Highway 1 and 2100 m in the Valhallas. Below, the upper snowpack may be moist at all elevations.

Three formerly problematic layers of surface hoar, facets and/ or crust formed in January and February exist in the mid-snowpack, 1-2 m deep. If the recent storm cycle didn't wipe them out, we at least expect them to be effectively bridged under current conditions, especially at low elevations where the near-surface crust is thickest and most supportive.

The remainder of the snowpack is well settled and strong.

Weather Summary

Tuesday Night
Mostly cloudy. 4 to 10 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -9 °C.

Wednesday
Mostly cloudy. 3 to 5 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -10 °C.

Thursday
Mostly cloudy. 10 to 25 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -7 °C.

Friday
Mostly cloudy. 1 to 5 cm of snow. 20 km/h west ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be alert to conditions that change with elevation, aspect, and exposure to wind.
  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Closely monitor how the new snow is bonding to the crust.

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.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.