Avalanche Forecast

Issued: Apr 19th, 2024 4:00PM

The alpine rating is low, the treeline rating is low, and the below treeline rating is low.

Avalanche Canada isnowsell, Avalanche Canada

Email

The upper snowpack will weaken throughout the day due to warming and solar radiation; while isolated wind slabs may persist in steep, high alpine areas.

Summary

Confidence

High

Avalanche Summary

A naturally triggered, size 2 storm slab avalanche was reported on Thursday, occurring on a steep, west-facing moraine feature in the alpine.

A cornice failure observed on Thursday did not propagate any weak layers on the north-facing, alpine slope below.

Despite the low danger rating, the likelihood of triggering an avalanche will increase throughout the day with warming and strong solar radiation expected.

Snowpack Summary

A melt-freeze crust has likely formed on the surface in all but north-facing alpine terrain. This crust will weaken and transition to wet snow with daytime warming and solar radiation.

Wind-affected dry snow remains in north-facing, alpine terrain.

Weather Summary

Friday Night

Sunny. 10 to 30 km/h east ridgetop wind. Treeline temperature -5 °C. Freezing level 1300 m.

Saturday

Sunny. 10 to 30 km/h southeast ridgetop wind. Treeline temperature +1 °C. Freezing level 2200 m.

Sunday

Cloudy with 0 to 10 cm of snow at higher elevations. 20 to 40 km/h southwest ridgetop wind. Treeline temperature -5 °C. Freezing level 1700 m.

Monday

Mostly cloudy. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1900m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for unstable snow on specific terrain features, especially when the snow is moist or wet.
  • Be alert to conditions that change with aspect and elevation.
  • Be alert to conditions that change throughout the day.
  • When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.

Valid until: Apr 20th, 2024 4:00PM