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

Dec 4th, 2025–Dec 5th, 2025

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

Regions

Glacier.

Be on the lookout for wind-loaded areas in the alpine and at treeline. The potential for human triggering will continue to increase with ongoing snowfall and moderate-strong ridgetop winds.

Confidence

Moderate

Avalanche Summary

A limited artillery avalanche control mission on Thursday produced small loose snow avalanches in steep terrain.

MIN reports have observed pockets of wind slab in the alpine.

Snowpack Summary

Expect ongoing wind slab development in the alpine and exposed areas at treeline.

By Friday afternoon up to 15cm of new snow will be covering surface hoar on faceted old powder snow in sheltered areas, a thin suncrust on steep solars aspects, and previous wind effect in open alpine terrain.

A rain crust is down 40-70cm in the snowpack, and exists up to approximately 2200m.

Weather Summary

A low pressure system passes just south of us Friday, pushing snow and wind our way.

Tonight Cloudy, isolated flurries. Alpine low -7°C, Freezing Level(FZL) 1100m. Ridge winds Moderate West.

Fri Cloudy with flurries (5-10cm). Alpine high -6°C, FZL 1200m. Mod W wind.

Sat Flurries (10cm). Low -6 °C, High -4 °C. FZL 1400m. Gusty strong W wind.

Sun Flurries(5-10cm). Low -9 °C, High -6 °C. FZL 1100m. Gusty strong SW wind.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.

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.