Radio Sussex reporting torrential storm stuck over Brighton and Hove, many roads flooded, some feet deep. Rail services disrupted when lightning struck a transformer.
Interesting radar echoes; absolutely nothing at 4 am, small blob off Beachy Head at 5am, full blown storm over Brighton 6am (and to a lesser extent up the A23 towards London). Still quite local and forecast to decay in situ - Hastings is dry, Chichester is dry but with some cloud formatios that look rather like outflow from the bottom of a large convection cell.
EDIT; a look at the radar echoes and forecasts suggest that most of central Brighton will have had some 4 hours of rainfall rates in excess (in some cases well in excess) of 25mm/hr for 4 hours by the time it dies down at 11am or so.
Originally Posted by: DEW