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 5th, 2021–Jan 6th, 2021

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

Regions

Little Yoho.

Look for wind sheltered terrain to enjoy the recent snow, and avoid steep wind loaded areas until the newly formed winds slabs have a chance to bond with the layers below. Be mindful of the recent storm snow interface - we saw action on it today!

Weather Forecast

A few cm's of new snow are forecast for Tuesday through Wednesday. Alpine winds will remain in the moderate to strong range out of the W and SW, increasing to strong Tuesday night before dropping to moderate again on Wednesday. Treeline temperatures will be in the -8 to -10 range on Wednesday

Snowpack Summary

15-40 cm of storm snow at treeline. Wind effect in open areas at treeline and in the alpine. The Dec 13 and Dec 7 sun crust/surface hoar/facet layers are down ~ 50 cm and ~80 cm respectively, sudden planar results in LIttle Yoho today and one explosive triggered size 2 in Sunshine area. The Nov crust/facet layer sits at the bottom of the snowpack.

Avalanche Summary

Explosive controlled wind slab avalanches to size 2 were reported by the local ski hills. A few size 1.5 storm slabs were triggered in the Mt. Field area (1950 m) in steep terrain. One skier remote size 2 avalanche on a steep convex roll below Wawa Ridge near Sunshine was reported on Sunday. Both avalanche reports failed on a stellar layer.

Confidence

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.

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.