The hard front between Sweden and the Baltics woke up with top lightning, and Aki Taavitsainen reported the first of that set.
Edit : However, it was also found in the shocking images when looking at the better screen and a hint of perky eyes.
The first is a fine-tuned version of the shake picture, then the sky camera picture (of which, among other things, the exact timing) and the third is an unedited shake picture.
According to lightning location data, the mother flash has been at sea east of Gotland. The direction matches the image as determined really well (image: 224.6 °, BO positioning: 224.1 °, FMI positioning: 224.37 °).