Avalanche Forecast

Issued: Mar 21st, 2024 4:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is low. Known problems include Persistent Slabs.

Avalanche Canada jsmith, Avalanche Canada


Cooling temperatures are reducing the likelihood of triggering large persistent slab avalanches.

Avoid steep or convex terrain features with a shallow or thin-to-thick snowpack.




Avalanche Summary

No new avalanches were reported on Wednesday, but data is very limited in this region.

If you go out into the backcountry, please consider posting your observations on the Mountain Information Network.

Snowpack Summary

0 to 5 cm of new snow overlies predominantly crusty surfaces.

A widespread, hard crust down 40 - 130 cm with weak facets above continues to be the primary layer of concern for human triggering of very large persistent slab avalanches.

Weather Summary

Thursday night

Partly cloudy. 10 to 20 km/h north ridgetop wind. Treeline temperature -2 °C. Freezing level 1100 m.


Mix of sun and cloud. 10 to 20 km/h variable directions ridgetop wind. Treeline temperature 2 °C. Freezing level 2000 m.


Cloudy. 10 to 20 km/h east ridgetop wind. Treeline temperature -1 °C. Freezing level 1700 m.


Sunny. 20 to 30 km/h north ridgetop wind. Treeline temperature -4 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Avalanche hazard may have improved, but be mindful that deep instabilities are still present.
  • Cornice failure may trigger large avalanches.


Persistent Slabs

An icon showing Persistent Slabs

A crust with weak facets above is down 40 to 130 cm. Steep or convex terrain features with a shallow or thin to thick snowpack at treeline and above are the most likely places to trigger this layer.

Aspects: All aspects.

Elevations: Alpine, Treeline.


Unlikely - Possible

Expected Size

1.5 - 3

Valid until: Mar 22nd, 2024 4:00PM