Avalanche Forecast

Issued: Jan 2nd, 2024 4:00PM

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

Avalanche Canada DK, Avalanche Canada

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Cool temperatures and blue skies on the Parkway today. An older but notable avalanche was observed in the alpine on a wind-loaded, steep, and unsupported glacier ramp. This and similar features on ice climbs are where you will may trigger a deep persistent slab at the moment.

Summary

Confidence

High

Avalanche Summary

Aged sz 2 noted today on Mt Athabasca, Noth Glacier below the ramp. The area is quite wind-loaded, steep, and considered unsupported glacier ice.

Snowpack Summary

No changes in the short term: extensive wind effect is seen throughout the region. Sheltered areas have an average snow depth of ~45-65 cm. The snowpack does have some vulnerabilities (old SH, windslab), but there is not a structurally stiff slab overlying to support or react to a rider in common riding locations. Very early season conditions.

Weather Summary

Wednesday: Mainly cloudy with isolated flurries. Precipitation: trace. Tuesday Overnight: -9. Day: -4 °C. Light westerly winds to 10 km/h. Freezing level at valley bottom.

The Mountain Weather Forecast is available at Avalanche Canada https://www.avalanche.ca/weather/forecast

Terrain and Travel Advice

  • Use caution when approaching steep and rocky terrian.
  • Early season avalanches at any elevation have the potential to be particularly dangerous due to obstacles that are exposed or just below the surface.

Problems

Deep Persistent Slabs

An icon showing Deep Persistent Slabs

You must keep this basal layer on your radar as triggering is possible in some features, like approaching or moving between pitches on ice climbs. Be cautious in steep terrain if you find yourself standing on the surface and not wallowing in facets, that's the problem slab.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1.5 - 2.5

Valid until: Jan 3rd, 2024 4:00PM

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