Avalanche Forecast

Issued: Mar 19th, 2024 4:00PM

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

Avalanche Canada isnowsell, Avalanche Canada

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Continue to assess for wind slabs in exposed, alpine terrain features.

Summary

Confidence

Moderate

Avalanche Summary

A group of skiers remote-triggered a size 2 avalanche on a wind-loaded convex roll in the Wheaton area on Sunday. Check out the associated MIN here.

If you go into the backcountry, please submit your observations to the Mountain Information Network.

Snowpack Summary

A widespread surface crust likely exists up to roughly 1500 m.

At higher elevations recent snow has been redistributed by winds from various directions. Deeper deposits of wind slabs can be found in exposed terrain.

In some areas, a weak layer of facets or surface hoar may persist, down approximately 50 to 80 cm from the surface.

Weather Summary

Tuesday Night

Partly cloudy. 10 to 30 km/h northeast ridgetop wind. Treeline temperature -3 °C.

Wednesday

Partly cloudy. 10 to 30 km/h north ridgetop wind. Treeline temperature -4 °C.

Thursday

Partly cloudy. 10 to 30 km/h north ridgetop wind. Treeline temperature -6 °C.

Friday

Partly cloudy. 0 to 20 km/h variable ridgetop wind. Treeline temperature -6 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be especially cautious as you transition into wind affected terrain.
  • Carefully evaluate steep lines for wind slabs.
  • Back off if you encounter whumpfing, hollow sounds, or shooting cracks.

Problems

Wind Slabs

An icon showing Wind Slabs

Recently formed wind slabs may remain reactive at higher elevations. Be particularly cautious around corniced ridges, cross-loaded features, and convex rollovers.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Possible

Expected Size

1.5 - 2.5

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