Avalanche Forecast

Issued: Jan 30th, 2021 4:00PM

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

Benjamin Firth,

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Eventually all green bricks must come to an end.  Plan on the hazard elevating with the increased winds and new snow starting Sunday afternoon and continuing into next week

Summary

Weather Forecast

Sunday: Flurries. Accumulation: 9 cm. Alpine temperature: High -4 °C. Ridge wind south: 15-35 km/h. Freezing level: 1600 metres.

Monday: Periods of snow. Accumulation: 18 cm. Alpine temperature: Low -6 °C, High -3 °C. Ridge wind south: 15 km/h gusting to 40 km/h.

Tuesday: Flurries. Accumulation: 6 cm. High -5 °C. wind occasionally gusting to 35 km/h.

Snowpack Summary

Alpine is either stripped of snow completely or offers a variety of wind affected surfaces. Surface faceting continues with cooler temperatures. Strong mid-pack overlies generally supportive basal layers. Decomposing surface hoar is found down 40cm to 80cm in isolated sheltered locations, in the very southern parts of the park.

Avalanche Summary

Field team reports no new avalanche activity observed.

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Confidence

Intensity of incoming weather systems is uncertain on Monday

Problems

Persistent Slabs

An icon showing Persistent Slabs

Keep an eye out for sporadic weak layers within the snowpack. These layers may be present in a form of buried surface hoar, facet interfaces, thin to fat areas and/or sun crust.

  • Dig down to find and test weak layers before committing to a line.
  • Be aware of thin areas that may propogate to deeper instabilites.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Unlikely

Expected Size

1 - 2.5

Valid until: Jan 31st, 2021 4:00PM