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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Monday afternoon's weather for the east of the region
Monday afternoon's weather for the west of the region
Monday's weather for the east of the region