Avalanche Forecast

Issued: Apr 23rd, 2024 4:00PM

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

Avalanche Canada ahanna, Avalanche Canada

Email

Watch for pockets of wind slab in leeward alpine features, they may remain triggerable by riders.

Summary

Confidence

Moderate

Avalanche Summary

A handful of small (size 1) skier-triggered storm and wind slab avalanches up to 30 cm deep were reported in the alpine on Monday. Solar-triggered loose wet avalanches were observed up to size 2 in steep alpine terrain.

Last week, cornice failures were notably not propagating any weak layers on slopes below but there was one report of an anomalous remotely skier-triggered size 2 failing on moist snow below a recently buried crust.

Snowpack Summary

A dusting of new snow falls over widespread crusty surfaces on all but high north-facing alpine terrain, where snow is dry and likely wind affected. There are no deeper concerns at this time.

Weather Summary

Tuesday night

Mostly clear. 10 to 30 km/h southeast ridgetop wind. Treeline temperature +3 °C. Freezing level 2300m.

Wednesday

Mostly cloudy with flurries bringing up to 5 cm of snow. 20 to 40 km/h southwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000m.

Thursday

A mix of sun and cloud. <20 km/h northwest ridgetop wind. Treeline temperature 0 °C. Freezing level 2000m.

Friday

Mostly cloudy with a trace of snow. 10 to 20 km/h southeast ridgetop wind. Treeline temperature 0 °C. Freezing level 2000m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Problems

Wind Slabs

An icon showing Wind Slabs

Small wind slabs may remain triggerable in lee terrain features at upper elevations. They may be especially reactive where they sit over a crust.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 1.5

Valid until: Apr 24th, 2024 4:00PM

Login