The South Columbia received highly variable snowfall amounts in the storm with the highest amounts near the Revelstoke area. Hazard is likely HIGH in the mountains near Revelstoke. South of Trout Lake is likely well represented by this bulletin.
Summary
Confidence
Moderate - Forecast snowfall amounts are uncertain
Weather Forecast
FRIDAY NIGHT - Flurries, 10-15 cm / southwest winds, 30-50 km/h / alpine low temperature near -7SATURDAY - Cloudy with scattered flurries, 3-5 cm / southwest winds 20-30 km/h / alpine high temperature near -7SUNDAY - Mainly cloudy with isolated flurries, 5 cm / southeast winds 10-15 km/h / alpine high temperature near -12MONDAY - Mainly cloudy / northeast winds, 10-15 km/h / alpine high temperature near -14
Avalanche Summary
Field observations were limited on Friday, but a widespread natural avalanche cycle, as well as numerous human triggered avalanches to size 1.5 were reported.On Tuesday, in the neighboring Glacier National Park region, a size 3 avalanche was skier triggered on a steep southeast facing slope in the alpine. More details and photos
here.
Snowpack Summary
20-50 cm of new snow has fallen in the region since Thursday. The highest amounts fell near Revelstoke, and the amounts taper significantly south of Trout Lake. This new snow sits wind slab, surface hoar (feathery crystals), facets (sugary snow) and a crust on sun-exposed slopes. A persistent weak layer that was buried in mid January is now buried 35-85cm. This layer consists primarily of surface hoar, however there is also a crust associated with it on sun-exposed slopes. This layer has been most reactive at treeline and below.
kdevine,
Avalanche Canada
