Summary
Confidence
Fair - Timing or intensity of solar radiation is uncertain
Weather Forecast
Monday: No snow. Sunny breaks. Light winds. Freezing level around 1200 m.Tuesday: Light snow. Light S winds. Freezing level around 1100 m.Wednesday: Light snow. Light winds. Freezing level around 900 m.
Avalanche Summary
A widespread natural avalanche cycle to size 3.5 occurred on Friday and Saturday. Numerous large slabs failed on a surface hoar/crust weakness. Loose wet avalanches were prevalent below treeline, and a size 2.5 wet slab was reported, gouging to ground in the lower track on Saturday.
Snowpack Summary
The recent storm delivered 60-70 mm of precipitation, which fell with warming temperatures, dropping rain below about 1800 m. A subsequent drop in temperature has left a supportive frozen crust up to treeline. Strong south to south-westerly winds during the storm created touchy wind slabs on lee terrain. A weak layer of buried surface hoar and/or a crust was overloaded during the storm, creating a widespread avalanche cycle. The lower snowpack is well settled.