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

Jan 2nd, 2022–Jan 3rd, 2022

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

Regions

Glacier.

Powder for the People!

Expect touchy avalanche conditions where slabs exist. The new snow will need some time to bond to the faceted layer it now buries.

Small sluffs in steep terrain will gather mass quickly, running fast and far.

Weather Forecast

Finally, the Arctic Air mass is bringing some joy to our lives as it mixes with the warmer Pacific Front, producing a pile of low density snow. Another 10cm of snow by Monday morning, 5-10cm over the day and an additional 5cm by Tuesday morning. Cloud and snow for Monday, alpine high of -10 with 20-35km/hr South winds at ridge top.

Snowpack Summary

20+cm of low density new snow buries a layer of faceted snow from the recent and continued cold temps. Wind slab exists in the alpine along ridge crests and open features down into tree line. The Dec 1 crust is buried 70-120cm, with faceted snow above and below it (especially in shallow areas).

Avalanche Summary

Several avalanches off of Mt. Tupper and Mt. MacDonald up to size 3 from wind loaded, steep, confined terrain. Widespread dry loose avalanches size 1-1.5 today (Sunday).

Expect avalanche activity to continue / increase throughout the duration of the storm.

Confidence

Intensity of incoming weather systems is uncertain on Monday

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.