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

Mar 27th, 2025–Mar 28th, 2025

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

It is uncertain how well the snowpack will recover from the recent rain and high elevation temperatures.

Make conservative decisions and avoid overhead hazards while the snowpack heals.

Confidence

Moderate

Avalanche Summary

A rain event into the alpine caused a widespread natural avalanche cycle on Wed. Numerous large wet avalanches ran down into the valley bottom.

Neighboring regions have reported serious incidents and very large avalanches.

Snowpack Summary

30mm of rain/wet snow has destabilized the upper snowpack. How well the wet snow will recover with a overnight freeze is somewhat uncertain.

The March 5 PWL consists of a crust &/or surface hoar and is down 60-120cm. There is concern that wet avalanches will step down to this PWL and may entrain more snow at lower elevations.

Additional PWL's from Jan/Feb are now buried 140-190cm deep.

Weather Summary

A general cooling trend with scattered flurries through to Sunday.

Tonight: Trace precip. Alpine low -3°C. West wind 20km/hr. Freezing Level (FZL) 1600m

Fri: Cloudy w/ scattered flurries. 5cm. Alpine high -2°C. South wind 10-35km/hr. FZL 1900m

Sat: 6cm. Alpine High -3°C. West wind 15-25km/hr. FZL 1800m

Sun: Mainly Cloudy. Trace precip. Alpine high of -1°C. Wind NE 10km/hr. FZL 1900m

Terrain and Travel Advice

  • Triggering deep layers is more likely if the snow surface didn't freeze overnight.
  • Wet avalanche activity may step down to deeply buried persistent weak layers at lower elevations.
  • Make conservative terrain choices and avoid overhead hazard.

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.

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.