The same storm passed overhead in finchampstead just outside of reading, The sky turned pitch black and turned day into night then there was a huge crack/bang like i have never heard before ( sounded like a shotgun ) and the property next door was struck. This was followed by extremly heavy hail and vertical rain, i immediatley checked out blitzortung.org and it showed no storms at the time although 20 minutes later it did, working on that info i assume that the storm that produced the tornado was spawned just west of reading.