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Avalanche Forecast

Archived

Feb 19th, 2024–Feb 20th, 2024

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Little Yoho.

Conditions are generally good. Watch for wind-slabs on steep entrances in alpine lee areas.

Confidence

Low

Avalanche Summary

No avalanches were observed or reported in the Yoho forecast region today.

Snowpack Summary

Surface hoar development to 4mm on shaded aspects below treeline and suncrust on steep solar aspects. Isolated wind slabs in the alpine. 10-25 cm of facetted snow over the Feb 3 crust. Persistent weak facet layers remain present in the mid and bottom of the snowpack.

Weather Summary

A benign weather pattern will hold over the region for the next few days. As a trough moves from BC into Alberta, clouds will develop and a trace to 5cm of snow is expected by Wednesday morning. Winds may increase to the moderate range Wednesday, but remain light on Tuesday. Temps will be seasonal with freezing levels below surface.

For more information be sure to check AvCan's Mountain Weather.

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • Avoid rock outcroppings, convexities, and anywhere the snowpack is thin and/or variable.

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.