Avalanche Forecast

Issued: Nov 9th, 2020 4:00PM

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

Lisa Paulson,

Summary

Weather Forecast

Tuesday:  Highs of -4C, light flurries with approximately 5 cm, strong SW winds diminishing through the day and switching to Northerly flow overnight bringing cooler temperatures for Wednesday.

Wednesday: Expect broken cloud, highs of -6C, and light W wind.

We expect an improving trend with the hazard.  For more weather information click here.

Snowpack Summary

In sheltered areas, above 2500 m there is 30-40 cm of recent snow that has been moved by extreme winds from the NE and W last week.  Below 2400 m, the Nov 5 rain crust has 0-20cm of snow on top of a 3cm supportive crust. At tree line the snowpack ranges from 30-60cm deep.

Avalanche Summary

No new natural avalanche activity reported.

Confidence

Due to the number of field observations

Problems

Wind Slabs

An icon showing Wind Slabs

Wind slabs exist from last weeks extreme SW wind event. More recent NE winds have created a reverse loading pattern. Although small in size, anticipate wind slabs in the alpine.

  • Be careful with wind loaded pockets while approaching and climbing ice routes.
  • Be careful around wind loaded areas near ridge crests, cross loaded gullies and roll-overs.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Valid until: Nov 10th, 2020 4:00PM

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