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 28th, 2022–Dec 29th, 2022

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

Regions

West Island.

Make conservative decisions and give new storm snow time to heal and bond to the underlying crust.

Confidence

Moderate

Avalanche Summary

Wet loose avalanche activity has likely ended. As fresh snow and wind arrive on Wednesday night, new and likely rider triggerable wind slabs will form over the new crust.

Snowpack Summary

The upper snowpack up to 1400m is moist and saturated from the recent rain. between 1400m and 1600m the moist surface has formed a crust with 10cm of new dry snow above it.

As the freezing level drops this new crust will likely extend down to or below 1000m. at treeline and above new wind and storm slabs will form as the next storm arrives.

Once again terrain below treeline has limited or no coverage.

Weather Summary

Wednesday Night

Mainly cloudy with flurries bringing 15cm of new snow. Light southeast winds. Freezing levels around 800m .

Thursday

Stormy with 25mm of new precipitation . Moderate south winds and Freezing levels rising to 1300m.

Friday

Stormy with up to 45mm of new precipitation expected. Moderate to strong southwest winds and freezing levels rising to 1500m.

Saturday

Cloudy with light flurries bringing around 5mm of new precipitation. Light west winds and freezing level rising to 1200m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for fresh storm slabs building throughout the day.
  • Make observations and assess conditions continually as you travel.
  • Be alert to conditions that change with aspect and elevation.
  • Closely monitor how the new snow is bonding to the crust.

Problems

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-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.