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

Nov 25th, 2022–Nov 26th, 2022

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

Regions

Spray - KLakes.

New snow is overlying a variety of snow surfaces and creating new windslabs in alpine terrain. Its still a young thin snowpack so ski with caution. Watch for winds increasing on saturday making windslabs more reactive.

Confidence

Moderate

Avalanche Summary

Visibility limited any new observations on Friday.

Snowpack Summary

10cm of new snow with warm temps and rapid settlement has fallen over the past 24hrs. This new snow is overlying a variety of snow surface from crust on solar aspects, to facets on more northern aspects and hard wind slabs in many areas. Due to the warmer temps during which this snow fell, this snow should bond to the underlying surface fairly well. The hazards that were evident yesterday are now just buried under the snow surface. Watch for windslabs in alpine terrain especially where the new snow is overlying the weaker surface facets. Telling depths are still fairly low for this time of year with only 50-70cm of snow at treeline.

Weather Summary

Another 5-8cm of snow is possible as the cold front continues to push down across the region. Saturday the snowfall should begin to taper off and temps will be cooler (-12) with winds into the moderate range. Later in the weekend we are expecting another 5-10cm of snow.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Ice climbers should be equipped with avalanche safety gear.

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.