Thunder and lightning and heavy hail passed over Aylesbury this morning as forecasters warned of extreme weather.
The storm passed through shortly before 11am, with car alarms being set off as a result (see video).
The Environment Agency has warned of heavy showers and gale force winds this afternoon, but has not issued any new flood warnings.
There is still a flood alert out for the River Thame, but the agency said water levels are falling.
The extreme weather increases the likelihood of sports fixtures at the weekend being affected.