My friend and I were skiing in bounds at Mission Ridge and saw a skier drop in and set off this avalanche (in bounds). The crown was 5 feet tall in its biggest area. The skier escaped and was very lucky.
Very grateful for all the time you put into this trip report and thank you to @wayne @Colin @JensHolsten @Dannible @Sol for laying the groundwork and being so selfless in posting all your info here over the years. This is the site at it's very best.