People in West Norfolk are being urged to sign up for flood alerts ahead of next month’s expected high tides.
The Environment Agency, councils and the Met Office are closely monitoring the situation.
A spokesman said: “High astronomic tides (also known as “spring tides”) will be at their greatest over the next three months. This is because September 2015 is the point in a natural 19 year cycle when the sun, moon and earth align to exert the greatest force on the tides in the UK.
“High tides do not in themselves lead to flooding. It is only when they happen to coincide with a combination of low pressure and strong winds that they can cause coastal flooding.
“We will monitor the situation closely, working alongside partners, including the Met Office and local authorities, and will issue alerts and warnings if required.
“As always, we would urge people and businesses to sign up to receive free flood warnings and to check their flood risk via our daily flood risk forecast and live Flood Warnings map.”
The last big tidal surge occurred in December 2013 which battered Lynn, Snettisham and Hunstanton.
Since then the agency has spent £1,200,000 on refurbishing the defences along the coastline between Lynn and Hunstanton and the tidal river embankments.