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Avalanche Forecast

Archived

Mar 1st, 2024–Mar 4th, 2024

Alpine
Natural and human triggered avalanches likely.
Treeline
Natural and human triggered avalanches likely.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural and human triggered avalanches likely.
Treeline
Natural and human triggered avalanches likely.
Below Treeline
Natural avalanches possible, human triggered probable.
Alpine
Natural and human triggered avalanches likely.
Treeline
Natural avalanches possible, human triggered probable.
Below Treeline
Natural avalanches possible, human triggered probable.

Regions

Ghost.

The Dry ghost is anything but right now. If you are planning to try to get into this region, be sure to equip yourselves with avalanche safety gear and carefully consider the route you are on and overhead hazard.

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

Confidence

Moderate

Avalanche Summary

Minmal observations in this areas. Please post what you are seeing to the MIN.

Snowpack Summary

50-80cm of recent snow and Moderate and variable winds have created extensive windslabs in the Ghost region. In many areas this new snow is overlying rocks but where this new snow is overlying previous snow there will also be a persistent slab problem. Winds in this region quickly builds new windslabs and areas that commonly have no avalanche danger can pose significant risk.

Weather Summary

Light snow will continue in the Ghost region overnight with winds becomming more north easterly in the evening and on Saturday. Temperatures will drop to -15C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Ice climbers should be equipped with avalanche safety gear.
  • Winter conditions may exist in gullies, alpine bowls, and around ridgelines.
  • Avoid terrain traps such as gullies and cliffs where the consequence of any avalanche could be serious.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

Persistent Slabs

Persistent Slab avalanches are the release of a cohesive layer of snow (a slab) in the middle to upper snowpack, when the bond to an underlying persistent weak layer breaks. Persistent layers include: surface hoar, depth hoar, near-surface facets, or faceted snow. Persistent weak layers can continue to produce avalanches for days, weeks or even months, making them especially dangerous and tricky. As additional snow and wind events build a thicker slab on top of the persistent weak layer, this avalanche problem may develop into a Deep Persistent Slab.

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.