Avalanche Forecast
Issued: Jan 20th, 2025 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Parks Canada,
Avalanche Canada
No change from yesterday as we are under the influence of a cold ridge of high pressure which is keeping the snowpack static. In areas of the eastern Rockies, locally strong winds were actively reloading and creating size 1 windslabs in steep north-facing terrain. This condition is not widespread but could catch someone by surprise.
Summary
Confidence
Moderate
Avalanche Summary
No avalanches were observed or reported in Little Yoho today.
Snowpack Summary
Wind slabs remain on lee features in the alpine. The upper pack may have a thin crust under the new snow on solar aspects and a surface hoar/facet interface under last week's snow, but no avalanches observed on this layer yet. The mid-pack is generally strong; however, a facet layer can be found near the ground in shallow snowpack areas. At treeline, average snowpack depth ranges from 120 to 150 cm.
Weather Summary
A ridge of high pressure is established over the region with cold air from the north keeping temperatures low. On Tuesday, a weak system will cross through, giving some overcast skies, light flurries and wind, but nothing significant before the ridge establishes itself again and clear skies return for Wednesday. Temperatures on Tuesday should reach a high of -8 in the valley bottom, so still cool.
Terrain and Travel Advice
- Wind slabs are most reactive during their formation.
- Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
Problems
Wind Slabs
Generally light winds today, combined with cool alpine temperatures, have had minimal impact on wind slab formation. However, wind slabs remain present in alpine lee areas. Exercise caution in wind-loaded terrain, especially near ridges, convex slopes, and leeward features.
Aspects: All aspects.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Jan 21st, 2025 4:00PM
