Avalanche Forecast

Issued: Jan 31st, 2024 4:00PM

The alpine rating is high, the treeline rating is considerable, and the below treeline rating is moderate. Known problems include Storm Slabs and Loose Wet.

Avalanche Canada cgarritty, Avalanche Canada


The hits keep coming. A mix of heavy snow and rain will maintain dangerous avalanche conditions on Thursday. Hunting for dry snow in the alpine will put you closest to harm's way.




Avalanche Summary

A widespread avalanche cycle took place in the region over the weekend and through Monday, with numerous wet slab and wet loose avalanches to size 4 (very large) seen in a wide range of terrain. One report from Tuesday featured a size 4 with a crown fracture over 3 km long!

Looking forward, a switch to snowfall will reinvigorate surface instabilities Thursday. This and the sheer scale of recent natural activity should suggest a very cautious approach to terrain selection.

Snowpack Summary

30-40 cm of new snow may accumulate in the alpine by end of day Thursday, with amounts tapering at lower elevations. The new snow accumulates on a thin existing cover of new snow over newly formed crust above about 2000 m and on rain soaked snow below this elevation.

Below any new crust at treeline, and especially below treeline, the snowpack is largely isothermal.

The mid and lower snowpack consists of various old crusts and is generally well-settled and well-bonded.

Weather Summary

Wednesday night

Cloudy with wet flurries and a possible 10-20 cm of new snow accumulating in the alpine, rain below 1700 m. Southeast alpine winds 30 to 50 km/h.


Cloudy with easing flurries bringing 10-20 cm of new snow above 1500 m. Southeast alpine winds 30 to 40 km/h. Treeline temperature around 0°C with freezing level around 1600 m.


Mostly cloudy with flurries continuing from overnight bringing 10-20 total cm of new snow. South alpine winds 10 to 30 km/h. Treeline temperature -1°C with freezing level around 1400 m.


A mix of sin and cloud. Alpine winds shifting northerly, 5-10 km/h. Treeline temperature -1°C with freezing level around 1400 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Storm snow and wind is forming touchy slabs. Use caution in lee areas in the alpine and treeline.
  • Storm slab size and sensitivity to triggering will likely increase through the day.
  • Keep in mind that wet avalanches can be destructive due to their high density.


Storm Slabs

An icon showing Storm Slabs

A switch to snowfall at high elevations will result in a new storm slab problem to manage Thursday. Expect this problem to increase in seriousness as you gain elevation.

Aspects: All aspects.

Elevations: Alpine, Treeline.


Very Likely

Expected Size

1 - 2

Loose Wet

An icon showing Loose Wet

Continuing rainfall should maintain weak upper snowpack conditions at lower elevations, meaning wet avalanches will remain possible in steep terrain below treeline.

Aspects: All aspects.

Elevations: Below Treeline.



Expected Size

1 - 1.5

Valid until: Feb 1st, 2024 4:00PM