Communities in Maldon, in Essex, are being advised to move pets to safety, avoid coastal paths and promenades, and postpone road journeys where possible.
It comes as the Environment Agency issued flood warnings for Norfolk, Suffolk and Essex.
High tide is expected in Maldon just before 5pm.
The Environment Agency is warning that businesses and homes alongs the waterfront and The Hythe could be at risk.
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Staying dry overnight with some clear spells.
A dry day with bright or sunny spells
Staff have been the victim of online trolling. A petition against the use of animal fat in £5 notes was started by a man from Keswick.