One more in my selection of posts from Seafair and, specifically, the gap in the show when movements were allowed for a while. Boeing Field is a busy base for Kenmore Air. They operate scheduled services to various locations along with some pleasure flights. These tend to be undertaken with their Cessna Caravans and Grand Caravans although the occasional PC-12 will be included.
The Cessnas are more than capable of operating from the short runway at Boeing Field and so, when things opened up, they fired up some of the planes to get out while they could. I imagine the schedule had to be amended during the show but at least they could continue to provide service. One would be lined up on the runway ready to go with another pulling up at the hold just behind it. They got out with some precision before the field closed to non-air show operations a little while later.