Avalanche Forecast

Issued: Jan 16th, 2023 4:00PM

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

Avalanche Canada mconlan, Avalanche Canada

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New wind slabs may form over the day.

Summary

Confidence

Moderate

Avalanche Summary

We haven't received reports of avalanche activity over the past few days. We expect that new wind slabs may form, which riders could trigger on Tuesday.

Snowpack Summary

New snow and strong southerly wind are forecast, which may form new wind slabs near ridges. Storm slabs may begin to form in areas sheltered from the wind.

Snow depths at White Pass are around 100 cm in sheltered areas and 200 cm on wind-loaded slopes.

Weather Summary

Monday Night

Cloudy with snowfall, accumulation 2 to 5 cm, 20 to 30 km/h south wind, alpine temperature -7 °C.

Tuesday

Cloudy with snowfall, accumulation 5 to 10 cm, 30 to 40 km/h southeast wind, alpine temperature -7 °C.

Wednesday

Mix of sun and cloud with intermittent snowfall, accumulation 2 to 5 cm, 20 km/h south wind, alpine temperature -8 °C.

Thursday

Cloudy with snowfall, accumulation 5 cm, 60 km/h south wind, alpine temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for signs of slab formation throughout the day.
  • Wind slabs are most reactive during their formation.

Problems

Wind Slabs

An icon showing Wind Slabs

Wind slabs may form as new snow and strong wind impact the region. Expect to find them in wind-loaded terrain near ridges. Also assess how new snow is bonding to previous surfaces.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Jan 17th, 2023 4:00PM