Visibility V / V
We went with the host to drive towards Harjavalta.
Right in Laitila, the host drew his attention to the strange spiraling cloud. At that time, the cloud and the surrounding area were clearly lighter. We decided to stop and grab the pictures.
At the end of my emergency, I immediately informed Matt, who ordered me to take pictures of the phenomenon.
The first two pictures are from Laitila, the next third is shot about 15 km before Eura when the phenomenon intensified and the color of the surrounding sky began to change. The last picture was taken in Eura. In Eura the cloud was already properly twisted and the sky bruised blue / reddish.
In the panel field, the cloud began to disintegrate.
Almost immediately after that, a decent storm broke out with wind and later rain.
No idea what the cloud is all about. There were good suggestions on the Facebook page for natural phenomena, but the jury is allowed to interpret the final "diagnosis" :)