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 31st, 2021–Feb 1st, 2021

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

Regions

Little Yoho.

Weather forecasts do not agree on snowfall amounts, but winds will be strong and temps will rise over the next few days.

Dial back your exposure and enjoy sheltered pow turns.

If you find 30cm or more of new snow, consider the danger rating as High.

Weather Forecast

The weather forecasts vary on snowfall amounts, but we can expect 5-25cm by Monday morning with an additional 10-35cm by Tuesday morning. Ridge top winds will be strong (40-60km/hr) from the South West. Temperatures will gradually rise, with an alpine high of -5 and a freezing level of 1700m. The storm tapers off by late Tuesday.

Snowpack Summary

5-15cm of snow in the past 24hrs brings the storm total to 15-40cm, with the most in the southern part of the region. The storm snow sits over facets in sheltered areas and over previous wind effect in exposed alpine and tree line areas. The mid-pack is well settled and unreactive to stability tests. The Nov crust/facets are near the ground.

Avalanche Summary

Developing soft storm slab is reactive to skier triggering in steep terrain and on convex rolls seen up to size 1.5 on Saturday. Lots of natural dry loose avalanche activity out of steep terrain size1-1.5 over the last few days.

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.