The Environment Agency has issued two flood alerts active for Cheshire West on Monday (October 17).
A downpour is expected to sweep in overnight into Tuesday.
An alert is in place for the North Wales coast, including the River Dee estuary, as well as the River Mersey estuary affecting parts of Ellesmere Port and Frodsham.
It is the lowest category notice which means ‘flooding is possible, be prepared’ and is less serious than a flood warning.
The Environment Agency said it would ‘continue to monitor the situation’ ahead of the spring tides, when the risk will be greatest.
The Met Office forecast said: “Some places will escape the showers altogether and stay largely dry throughout.
“A band of rain, heavy at times, will move southeastwards overnight, accompanied by strong winds.
“This will clear to leave clear spells and scattered showers.”
Chester was struck by flash floods in June after a series of thunderstorms brought deluges down on the city in a short space of time.
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