What is this just saw it?

We were going somewhere and my son said he saw a whirlpool in the sky.

I looked up and at first it didn’t seem special. Seemed like a normal airplane inside a fog or cloud. I looked around and saw several other aircraft neither with the fog, and the sky was very clear.

It had some sort of fog/cloud/shield around it. In the video it seems to shoot something off. It’s going headed in the direction the steam is coming off.

Please help.