This video shows the sections of the roof of a Kent supermarket collapse under the weight of the heavy rain.
Morrisons in Maidstone was evacuated and had to close after sections of the roofing gave way in the store.
It comes after Asda in Sittingbourne, Kent, also had to close its doors because of rain coming through the ceiling.
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Radical new trains that will carry millions of passengers on the Thameslink network will be launched today.
Tuesday morning's forecast for the east of the region
Tuesday morning's forecast for the west of the region