Summary
Confidence
Fair
Weather Forecast
Tuesday: Mainly cloudy with a chance of flurries – around 5 cm. The freezing level is around 1300 m. Ridge winds are moderate from the W-SW. Wednesday: Periods of snow – 5-10 cm. The freezing level is near 1000 m and ridge winds are moderate from the West. Thursday: Cloudy with flurries. The freezing level is around 800-1000 m and ridge winds are light.
Avalanche Summary
Several fresh wind slabs were easily triggered by skiers on the weekend, particularly where the new snow was sitting on a sun crust. There was also a report of a large explosive triggered avalanche from steep rocky terrain that likely released on the Feb. 10 persistent weak layer.A group of snowmobilers triggered a large avalanche not far from Blue River on Friday resulting in one fatality. Some information is available
here.The group involved in a very close call with a size 3.5 avalanche in the Ozalenka Valley south of McBride submitted a great incident report. Check it out
here. It's an excellent example of the kind of activity we've been seeing throughout the interior in the last week.
Snowpack Summary
Around 30-40 cm of recent storm snow has fallen in the past few days. Periods of strong westerly winds have probably formed fresh wind slabs in exposed lee and cross-loaded terrain. This new snow now sits on the previous snow surface which consists of surface hoar and/or crust.A couple other notable persistent weaknesses remain a concern in the mid-snowpack. Another surface hoar/sun crust combo buried in early March is now down around 60-80 cm. The February 10th surface hoar/facet/crust combo is 100cm - 150cm below the snow surface and widespread throughout the region. Surface avalanches in motion and cornice fall have the potential to initiate an avalanche on this deeply buried weak layer.