Two weeks worth of rain fell in just an hour this morning, battering England's south coast and causing flash flooding and disruption on the roads and rail. The Met Office said a "deeply unstable airmass" caused the storms.
ITV News reporter Richard Pallot reports:
Rather than a winter phenomenon, hail is surprisingly common during the most intense summer thunderstorms.
Lightning and hail storms, described by locals as like walking through a 'zombie apocalypse,' causes travel chaos in Brighton.