This Environment Agency picture shows the effects that the largest tidal surge in 60 years would have had on London if the Thames Barrier hadn't been closed.
Thousands of people were evacuated from their homes down the east coast of the country during storms last week.
But the 520 metre barrier saved London from the worst effects when it was shut on Thursday and Friday.
More top news
Sadiq Khan issues the first 'very high' air quality alert since becoming Mayor
The RSPCA alongside fire and rescue teams were called to help save a cat which got itself stuck in between a 15cm wall.
A glitch on TfL's Journey planner has begun renaming some of London's most popular stations.