Avalanche Forecast

Issued: Apr 7th, 2022 4:00PM

The alpine rating is moderate, the treeline rating is moderate, and the below treeline rating is moderate. Known problems include Loose Wet and Cornices.

Avalanche Canada TRettie, Avalanche Canada

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Continually assess the snow surface and watch for natural avalanche activity as you move through terrain. There is uncertainty in how the snowpack will respond to the rapidly changing freezing levels.

Summary

Confidence

Low - Uncertainty is due to difficult to forecast freezing levels.

Weather Forecast

Thursday night: No new snow expected. Strong southwest winds. Possibility of temperature inversion with a above freezing layer in the alpine.

Friday: A mix of sun and cloud with the possibility of light flurries bringing trace amounts of snow to the alpine and rain below. Strong southwest winds and freezing levels falling from 3000 m to 2000 m.

Saturday: A mix of sun and cloud with flurries bringing up to 5 cm of new snow. Light to moderate southwest winds and freezing levels around 1500 m.

Sunday: A mix of sun and cloud with the possibility of light flurries bringing trace amounts of new snow. Light west wind and freezing levels around 1500 m.

Avalanche Summary

Over the past few days one size one explosive triggered wind slab avalanche has been reported as well as several size one wet loose avalanches in steep terrain.

We suspect Wet loose avalanches will occur on all aspects and elevations except highnorth due to elevated freezing levels.

Snowpack Summary

Wind slab could still be found on north aspects in the alpine. Moist snow will likely be observed on all aspects except high north terrain. As the freezing level falls a new crust will form.

Multiple crusts exist in the upper snowpack. The mid and lower snowpack is well settled and bonded.

Terrain and Travel

  • Avoid sun exposed slopes, especially if snow surface is moist or wet.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • Avoid exposure to slopes that have cornices overhead.

Problems

Loose Wet

An icon showing Loose Wet

expect wet loose avalanches in steep terrain. 

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Very Likely

Expected Size

1 - 2

Cornices

An icon showing Cornices

The likelihood of natural cornice falls could increase with solar input and warming. Avoid traveling on slopes with cornices looming above.

Aspects: North, North East, East, North West.

Elevations: Alpine.

Likelihood

Likely

Expected Size

1.5 - 2.5

Valid until: Apr 8th, 2022 4:00PM