Avalanche Forecast

Issued: Jan 21st, 2024 4:00PM

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

Avalanche Canada dnylen, Avalanche Canada

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Wind slabs may be found on all aspects in the alpine, use extra caution around steep and convex slopes.

Summary

Confidence

Moderate

Avalanche Summary

On Thursday in the Bullmoose area; small windslabs of varying ages (some fresh and some old and hard) were reported. See photos here.

If you go out in the backcountry, please consider sharing your observations on the Mountain Information Network (MIN).

Snowpack Summary

10 cm of snow fell on Friday resulting in a total of 20-30 cm of recent soft snow on the surface. In places it is heavily wind affected and sits above a variety of old snow surfaces including wind-scoured snow and faceted snow. At treeline and below, the recent snow sits on a widespread crust and pockets of surface hoar.

The snowpack is shallow and faceted with multiple crusts. Pockets of deeper snow may be found near ridges, gully features, and established avalanche paths. Average snowpack depths at treeline are between 60 and 100 cm.

Weather Summary

Sunday Night

Cloudy with up to 3 cm of snow, south alpine wind 30 km/h, treeline temperature -16 °C.

Monday

Mix of sun and cloud, southwest alpine wind 40 km/h, treeline temperature -8 °C.

Tuesday

Mix of sun and cloud, southwest alpine wind 40-50 km/h, treeline temperature -1 °C.

Wednesday

Mix of sun and cloud, southwest alpine wind 30-60 km/h, treeline temperature 1 °C, with an above freezing layer from 900-1500 m

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind slabs, especially in steep, unsupported and/or convex terrain features.
  • Avalanche danger is often elevated in alpine gullies where snow has accumulated.

Problems

Wind Slabs

An icon showing Wind Slabs

20- 30 cm of recent snow as well as variable wind direction and intensity have created complicated patterns of wind effect.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Jan 22nd, 2024 4:00PM