Thousands of people were evacuated from their homes as a tidal surge hit coastal towns along the east coast of Britain.
The surge, predicted to be the worst for more than 60 years, hit the north Norfolk coast early in the evening and was expected to head south throughout the night.
The Environment Agency (EA) has issued a number of severe flood warnings - the highest category, which are only issued when flooding poses a danger to life - covering coastal areas in East Anglia, the Midlands and Kent.
Some parts of the UK are have seen the worst storm surge in 60 years, but we are not out of the danger yet.
A combination of factors are combining to make this storm surge particularly powerful.
Water levels around the UK could be higher than in the storm surge of 1953, but thanks to flood defences the impact is likely to be smaller.