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

Feb 10th, 2024–Feb 11th, 2024

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

Regions

Glacier.

With small amounts of new snow, you can expect the skiing to improve, slightly.

Watch for how the recent snow is bonding to the crust and be cautious while travelling through cross-loaded terrain and near ridge-top.

Confidence

Moderate

Avalanche Summary

No new natural avalanches were observed in the highway corridor on Saturday.

Over the past two days, there has been natural activity from the steep north facing terrain of Mt. Macdonald. There has also been reports of up to sz 2 avalanches triggered both naturally & by skiers.

A group bootpacking a couloir on the S side of Avalanche Mtn triggered a sz 2.5-3 avalanche yesterday. Use caution in this extreme terrain, where the snowpack might be variable and weak.

Snowpack Summary

10-20cm of recent snow sits over a robust crust that formed during recent warm weather. This crust becomes thin and tapers out above 2500m.

Below 2000m the crust is very supportive. This, plus refrozen avalanche debris and shallow snowpack hazards make for RUGGED travel below tree-line.

Warm temperatures have rounded and strengthened the mid and lower snowpack.

Weather Summary

A light system approaches bringing new snow from Sunday into Monday. Tues brings a clearing pattern.

Tonight: Cloudy, Trace precip, Alp low -8°C, light SW winds, Freezing Level (FZL) valley bottom.

Sun: 7cm, Alp high -6°C, Light SW winds, FZL 1300m.

Mon: Cloudy w/ sunny periods & isolated flurries, Alp high -6°C, Light SW wind, FZL 1300m.

Tues: Mix of sun & cloud, Alp high -12°C, FZL valley bottom.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Loose avalanches may start small but they can grow and push you into dangerous terrain.

Problems

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.

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.