A gust of wind, and snow flurries, accompanied the pilots.
It did start to snow! Not only those little flurries, But big fat flakes, which clung immediately to their surface.
National Weather Service meteorologist Jim Tiger says only flurries are in today's forecast, but the twin cities will have colder than normal wind chills.
When the holograms switched clothes, bursting into puffs of mist or flurries of snow, the audience gasped, as they did when actual snow fell on their finery.
But, at the drone event, Mr. Anderson and Mr. Muñoz seemed most concerned with keeping their aircraft dry and airborne despite the snow flurries.