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 24th, 2020–Feb 25th, 2020

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

Regions

Glacier.

Storm slabs are at the perfect depth to be triggered by humans. Choose supported terrain for your ascent/descent.

Be aware that the sun is getting stronger and can trigger dry loose avalanches when it pops out from behind the clouds!

Weather Forecast

A mix of flurries, sun, and cloud over the next few days as systems try to push through from the west coast.

Today: Sun and cloud, alpine high -10*C, light to mod W winds

Tues: Cloudy with flurries, 5cm snow, alpine high -8*C, mod SW winds

Wed: Cloudy with flurries, 5cm snow, alpine high -7*C, mod SW winds

Snowpack Summary

30+cm of storm snow has now buried the February 22 weak layer. This layer consists of surface hoar (observed up to 2300m) in sheltered areas and a sun crust on solar aspects. Surface hoar may be found on the sun crust in some areas. Where the new snow has become cohesive, it is reactive to human triggering as a 20-40cm soft slab.

Avalanche Summary

Natural avalanche activity tapered yesterday with only minor dry, loose sluffs being observed from extreme terrain. A widespread natural avalanche cycle to sz 3 occurred Saturday on all aspects/elevations. These avalanches were failing on the Feb 22nd surface hoar/ sun crust layer and became very reactive with solar input and gusty winds.

Confidence

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.

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.