Avalanche Forecast

Issued: Mar 2nd, 2024 12:45PM

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

Avalanche Canada Dvonk, Avalanche Canada

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Good time to avoid all avalanche terrain and head to a local resort.

Avalanche control is planned again on East end of Mt. Rundle & Mt. Buller avalanche control zone on Sunday Feb 3rd. The spray road remains closed from Grassi lakes to Goat creek parking lot.

A Special Public Avalanche Warning is in effect. Click the red SPAW link for details.

Summary

Confidence

High

Avalanche Summary

A good Min report found: Here

Avalanche control was attempted once again on East end of Mt. Rundle, poor visibility all day stopped the team from accessing the high targets. A good clean out however on the backside of Three sisters showed slab properties and the new snow moving quickly.

Snowpack Summary

60-90cm of recent snow is now overlying the Feb 3rd crust complex. Storm slabs and wind slabs can be expected in this new snow which will be easy to trigger with a skiers weight. A weak layer of faceted crystals also exists above and below this crust that has been producing moderate sheers. This new snow is beginning to overload this layer and cause a natural avalanche cycle. The November basal facets are alive and well and back on our radar as the February 2 rain crust is deteriorating and not locking in the weaknesses below as it once did. Skier weight has now been able to break through the Feb 2 rain crust in some places, which means that the basal facets can now be more easily affected.

This is a good time to avoid all avalanche terrain

Weather Summary

Sunday will bring partially sunny skies and a day time high of -14. Winds will be light out of the West.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid exposure to overhead avalanche terrain, avalanches may run surprisingly far.
  • Avoid all avalanche terrain during periods of heavy loading from new snow, wind, or rain.

Problems

Persistent Slabs

An icon showing Persistent Slabs

New snow is overloading the Feb 3rd persistent layer interface that developed in the warm spell in early February.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Very Likely - Certain

Expected Size

1 - 3

Wind Slabs

An icon showing Wind Slabs

Failures within the recent snow including windslabs, and storm slabs from rapid settlement have been observed in all elevations. Open areas below treeline where the new now is settling should be carefully evaluated.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Very Likely - Certain

Expected Size

1 - 2.5

Deep Persistent Slabs

An icon showing Deep Persistent Slabs

Avalanche may step down to the weeker deep basal layers.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Very Likely

Expected Size

2 - 3.5

Valid until: Mar 3rd, 2024 3:00PM