Sometime back in the late 1990's there was a horrific storm that went on almost all night, with lightning that caused booming thunder and then an hour after that just constant lightning with no thunder, was unexplainable, and a night that ill never forget, it was mid july i think 1998/99.
2nd memorable storm day was July 16th or something in 2002 on one of the days when the commonwealth games at Manchester was taking place. Was in Peterborough city centre, with the main street becoming a river and people were all just lined up underneath the shop entrances! constant lightning with cracking thunder, and there were about 4/5 more storms followed that one too, even on that same night, there was another thunderstorm! Really strange on that day as the storms were moving N, but winds were blowing in from the N/NE totally the opposite way to where the storms were going!
Onwards from that, up to 2006, there were a numerous amount of decent storm activity, where has it all gone now? :L. Since 2006 we haven't had anything remarkable, well certainly not like the ones as stated above. Hopefully we'll be compensated sooner or later!