Avalanche Forecast

Issued: Jan 20th, 2022 4:00PM

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

Avalanche Canada mconlan, Avalanche Canada

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Snow and extreme wind are increasing the danger. Conservative terrain travel is recommended.

Summary

Confidence

High - We are confident the likelihood of avalanche will increase with the arrival of the forecast weather.

Weather Forecast

THURSDAY NIGHT: Cloudy with snowfall, accumulation 5 to 10 cm, 40 km/h south wind, alpine temperature -5 C.

FRIDAY: Cloudy with snowfall, accumulation 10 to 20 cm, 80 to 100 km/h southwest wind, alpine temperature -4 C.

SATURDAY: Cloudy with snowfall, accumulation 10 to 20 cm, 60 km/h south wind, alpine temperature -1 C, freezing level 1400 m.

SUNDAY: Cloudy with snowfall, accumulation 5 cm, 30 km/h southwest wind, alpine temperature -6 C.

Avalanche Summary

No recent avalanches were observed. Avalanche activity is expected to ramp up on Friday during the storm. Natural and rider-triggered avalanches will be likely.

We appreciate all your observations on the Mountain Information Network.

Snowpack Summary

We are in the midst of a strong storm that will impact the region for the coming days. We are expecting around 20 to 30 cm of snow to accumulate at White Pass by sunset on Friday, with extreme southwest wind. Wind slabs will likely rapidly form in wind-exposed terrain and storm slabs in sheltered terrain.

The remainder of the snowpack is hard but heavily faceted.

Terrain and Travel

  • Good day to make conservative terrain choices.
  • Wind slabs are most reactive during their formation.
  • Watch for fresh storm slabs building throughout the day.

Problems

Wind Slabs

An icon showing Wind Slabs

Extreme wind and new snow will rapidly form wind slabs in lee terrain features. Storm slabs may also form in areas sheltered from the wind.

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

Elevations: Alpine, Treeline.

Likelihood

Likely

Expected Size

1 - 2

Valid until: Jan 21st, 2022 4:00PM