Avalanche Forecast

Issued: Apr 3rd, 2023 4:00PM

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

Avalanche Canada MM, Avalanche Canada


Sporadic flurries are expected through Monday night but the forecasted amounts are uncertain.

Watch for signs of instability throughout the day and pay attention to how the new snow is bonding to crusts on solar aspects.




Avalanche Summary

Saturday through Sunday evening several loose dry avalanches up to size 2.5 were observed in the steep gullied terrain of Mt Macdonald.

Last week glide cracks were on the move, giving isolated large avalanches from steep south facing terrain. There was a size 3 just West of the park on Friday, and a few size 2.5-3.5 from Mt Tupper earlier in the week.

Snowpack Summary

15-20cm of settled snow is covering a solid crust on solar aspects and old powder on polar aspects.

The mid and lower snowpack is generally strong. However, the basal weakness from November can still be found near the ground in many locations. This layer will remain a concern until the end of the season.

Weather Summary

Monday overnight brings another round of flurries into Tuesday with a ridge of high pressure approaching on Wednesday.

Tonight: (trace). Alpine Low -10°C. Light ridge wind East. Freezing level(FZL) valley bottom.

Tues: Flurries (trace). High -7°C. FZL 1500m. Light NW wind.

Wed: No precip. Low -10°C, High -7°C. FZL 1400m.

Thurs: (Trace). Low -9°C, High -3°C. FZL 1800m.

Terrain and Travel Advice

  • Be carefull with sluffing in steep terrain, especially above cliffs and terrain traps.
  • Avoid freshly wind loaded features, especially near ridge crests, roll-overs and in steep terrain.
  • Closely monitor how the new snow is bonding to the crust.


Loose Dry

An icon showing Loose Dry

Even a small avalanche can be harmful if it pushes you into an obstacle or a terrain trap.

Aspects: All aspects.

Elevations: All elevations.



Expected Size

1 - 2

Storm Slabs

An icon showing Storm Slabs

New snow and ridge-top winds may have built storm slabs in immediate lees and areas exposed to katabatic winds.

Aspects: All aspects.

Elevations: Alpine, Treeline.



Expected Size

1 - 2

Valid until: Apr 4th, 2023 4:00PM