Avalanche Forecast

Issued: Apr 4th, 2024 4:00PM

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

Avalanche Canada llarson, Avalanche Canada

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20 to 25 cm of accumulated snow has developed into storm slabs. Human-triggered avalanches are more likely in lee features where east winds have helped consolidate the snow.

Summary

Confidence

Moderate

Avalanche Summary

No new avalanche activity was reported. With the forecast snow and rising freezing levels, avalanche activity is expected to increase.

Data is limited in this region. Please consider posting your observations to the Mountain Information Network.

Snowpack Summary

20 to 25 cm of accumulated storm snow has formed storm slabs at all elevations. These storm slabs may be more reactive on lee slopes from moderate easterly winds treeline and above. The new snow overlies a crust on all aspects and elevations.

A persistent weak layer of facets is sitting on top of a second buried crust down 100 to 180 cm. This layer is unlikely to human trigger in areas where a thick crust above the weak layer is present.

Weather Summary

Thursday Night

Cloudy with snow, 10 to 15 cm. 10 to 20 km/h northeast ridgetop wind. Treeline temperature -4° C.

Friday

Cloudy with isolated flurries, 2 to 4 cm. 10 to 20 km/h east ridgetop wind. Treeline temperature -2° C. Freezing level 1900 m.

Saturday

Mainly cloudy with isolated flurries, 0 to 3 cm. 10 to 20 km/h north ridgetop wind. Treeline temperature -2° C. Freezing level 2100 m.

Sunday

Mainly cloudy with isolated flurries, 3 to 6 cm. 15 to 20 km/h west ridgetop wind. Treeline temperature -3° C. Freezing level 2000 m.

Check out the Mountain Weather Forecast for additional weather information.

Sunday

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for changing conditions today, storm slabs may become increasingly reactive.
  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.

Problems

Storm Slabs

An icon showing Storm Slabs

20 to 25 cm of accumulated new snow has formed a storm slab over a supportive melt-freeze crust, which may become more reactive as temperatures rise throughout the day and storm snow settles into a cohesive slab.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible

Expected Size

1.5 - 2.5

Valid until: Apr 5th, 2024 4:00PM

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