Please note: it has been analyzed and compared with wheater data but not yet confirmed wheter it is a real ball lightning event or not - but it it is very likely to be! Picture shot in Allensbach, Lake Constance, Germany. I however can sure it is not fake! What you see is a section of the actual shot.
It was followed by heavy lightning.
I talked to the swiss hail defense - they didn't send anti-hail rockets into the sky at the time, nor was there air traffic.
The lightning ball appeared for not longer than half a second, maybe slightly longer. It was very irritating to see... I captured it by pure luck, trying to capture some lightning.