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

Dec 5th, 2022–Dec 8th, 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 possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Waterton Lakes, Waterton.

With a lack of field observations, confidence in this forecast is LOW. Check out the Mountain Information Network for the latest trip reports.

Confidence

Low

Avalanche Summary

No new avalanches observed in the last 4 days due to no field work.

Snowpack Summary

15cm of storm snow being redistributed by moderate SW winds into a new slab. This overlies wind-affected old surfaces and pockets of windslab in the alpine and at treeline. The lower snowpack is a variety of old surfaces including facets, crusts, and windslab. A spotty crust exists at the very bottom of the snowpack in deeper locations.

Below treeline new snow sits upon 20cm of settling storm snow. This overlies early-season snow in the form of facets and crusts

Weather Summary

Tuesday

Overcast with light flurries. Total accumulations from Monday night will be around 10cm. Temps in the alpine will be around -10 with moderate west winds.

Wednesday

Broken skies and moderate west winds. Alpine high -5.

Thursday

Strong to Extreme southwest winds. Overcast skies with an alpine high of -5. Light flurries through the day.

More details can be found in the Mountain Weather Forecast.

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.

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.