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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Sunday evening's weather update for the east
Sunday evening's weather update for the west