Met Office experts have extended a yellow thunderstorm warning to cover Kent - potentially bringing 'Furnace Friday' to an abrupt end.

Heavy rain, lightning and flooding are all a possibility, and as much as 30mm of rain could fall in just one hour.

The warning will remain in place between 2pm today and 2am on Saturday morning.

Forecasters have also predicted travel disruption, and possible power cuts.

The Met Office said: "There is the potential for thunderstorms to develop during Friday afternoon, lasting well into the evening and perhaps developing into larger areas of heavy rain.

"Torrential downpours are possible with as much as 30 mm of rainfall in 1 hour and 60 mm in 3 hours.

"Large hail, frequent lightning and strong, gusty winds will be additional hazards - however, many places will see much lower rainfall amounts."