I remember a severe thunderstorm over North Yorkshire in August 2001.
I fiest remember hearing rumbles of thunder at around 8 am, that became louder with extremely frequent lightning. In fact, the sky appeared to be constantly lit up for over two hours. I remember fork lightning, torrential rain crashing thunder and large hail.
There was a severe thunderstorm the evening before too, with reports of a funnel cloud.
I remember witnessing some quite severe storms in the 80s when I was little. They seemed to be a lot more frequent then. My Mum and Dad used to unplug the TV whenever there was a thunderstorm.