Avalanche Forecast

Issued: Apr 13th, 2024 4:00PM

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

Avalanche Canada jsmith, Avalanche Canada

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Lingering wind slabs may still be reactive on lee features below alpine ridgetops.

Avoid steep, rocky, and wind affected areas where triggering slabs is more likely.

Summary

Confidence

High

Avalanche Summary

Numerous naturally triggered wet loose avalanches up to size 2 were reported on sunny aspects on Friday.

Several natural and rider triggered wind slabs up to size 1.5 were also reported on northerly aspects in the alpine.

Snowpack Summary

High freezing levels and strong solar radiation have created moist snow on all aspects and elevations.

Up to 40 cm of recent snow has settled rapidly with intense solar radiation and warm temperatures.

Lingering wind slabs may still be reactive on lee features below alpine ridgetops.

A series of crusts exist in the upper snowpack.

Expect difficult travel at lower elevations with thin snow coverage.

Weather Summary

Saturday Night

Clear skies. 10 to 20 km/h southwest ridgetop wind. Treeline temperature 4 °C. Freezing level 2600 m.

Sunday

Sunny. 10 to 20 km/h southwest ridgetop wind. Treeline temperature 7 °C. Freezing level 2700 m.

Monday

Mix of sun and cloud. 10 to 20 km/h west ridgetop wind. Treeline temperature 0 °C. Freezing level 2000 m.

Tuesday

Mostly cloudy with isolated flurries, 3 to 5 cm snow. 20 to 30 km/h northeast ridgetop wind. Treeline temperature -5 °C. Freezing level 1400 m.

Check out the Mountain Weather Forecast for additional weather information.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Be alert to conditions that change with aspect and elevation.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.
  • The more the snow feels like a slurpy, the more likely loose wet avalanches will become.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Problems

Wind Slabs

An icon showing Wind Slabs

Lingering wind slabs may still be reactive on lee features below alpine ridgetops.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 2

Cornices

An icon showing Cornices

High freezing levels and strong solar radiation increase the likelihood of cornice failure.

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

Elevations: Alpine.

Likelihood

Possible

Expected Size

1.5 - 2.5

Loose Wet

An icon showing Loose Wet

High freezing levels and strong solar radiation will trigger wet loose avalanches on all aspects and elevations on Sunday.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Likely - Very Likely

Expected Size

1 - 1.5

Valid until: Apr 14th, 2024 4:00PM

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