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Avalanche Forecast

Archived

Feb 7th, 2025–Feb 8th, 2025

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Little Yoho.

Small windslabs may be found in alpine terrain. These have been generally small and stubborn to trigger, but may be enough to ruin your day in steep terrain. Sheltered terrain is still holding good skiing.

The cold temps continue. Make sure you have the gear to stay warm if any unexpected delays occur.

Confidence

Moderate

Avalanche Summary

No new avalanches were observed or reported in Little Yoho, however, in neighbouring areas:

Local ski hills were reporting thin windslabs that were small in size but could be triggered with ski cuts and explosives.

There was a remotely triggered avalanche just southwest of our region that likely failed on the Jan. 30th layer in an area with a deeper snowpack and more of a windslab above this layer.

Snowpack Summary

30-40 cm of snow from last weekend has been affected by the wind in exposed alpine locations. This recent snow has buried a weak layer of facets, sun crust and surface hoar (Jan 30th) which is currently not reactive, but is worth watching if we get more wind loading or new snow. The mid and lower snowpack is well settled, with snowpack depths at the treeline ranging from 120cm to 180cm.

Weather Summary

Dry and cold conditions will persist. Treeline temperatures will be steady between -17 to -21°C. Winds will increase slightly to moderate from the west Friday night and into Saturday. Saturday will be mostly cloudy and we may see a trace of new snow.

Terrain and Travel Advice

  • Be careful as you transition into wind-affected terrain.
  • Wind slabs are isolated, but may remain reactive.
  • Closely monitor how the new snow is bonding to the old surface.

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.