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The 1953 East Coast Floods

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People travelling through flood water in 1953.

January 31st marked the anniversary of what has been repeatedly described as the worst national peacetime disaster to hit the UK.

Key Points
  • A storm surge is primarily caused by the wind pushing the sea towards the coast.
  • In 1953 there was no single body responsible for flood warnings.
  • In 1989, the National Rivers Authority was formed to oversee flood defences in England and Wales.
  • If air pressure decreases by one millibar, sea level rises by one centimetre.
Also in this Series

The 1908 Spring Snow storm
The 1976 Drought
The Great Derby Day Disaster
The Great Storm of 1703
The 1953 East Coast Floods

Also in BBC Weather

Air Pressure
Deluges
UK Records

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BBC Suffolk coverage
BBC Lincolnshire coverage

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The Met Office
Environment Agency
UK Climate Impacts Programme


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Exceptional weather conditions combined with a spring tide produced one of the worst floods in living memory for the east coast of England. Over 300 people lost their lives and damage in today's money was estimated at over £5 billion.

What caused the flooding?
The flooding was caused by a storm surge. A storm surge is primarily caused by the wind pushing the sea towards the coast, but can also be coupled with low air pressure. If pressure decreases by one millibar, the sea level rises by one centimetre. While this doesn't sound much, across the whole sea this can represent a significant volume of water.

...winds drove the storm surge southwards causing devastating floods...
Key events in the development of the depression:
From 1800 on 31st January, winds drove the storm surge southwards causing devastating floods along the east coast reaching Canvey Island just after midnight on 1st February then continued around the North Sea basin to devastate the Netherlands. Hurricane force winds were recorded at Felixstowe at 2000.

In total, 307 people in the UK were killed and almost 100,000 hectares of eastern England were flooded, while in the Netherlands, 50 dykes burst and 1,800 people drowned. The sea reclaimed over 200,000 hectares of polder country.

Time Date Event Pressure
Early hours 30 January Unremarkable depression just south of Iceland, deepened rapidly and headed east 996mb
1800 30 January Depression located near the Faeroes 980mb
1000 31 January Dutch warning system warned of high tides, but not co-ordinated with the UK
1130 31 January Dunstable Met Office warned of exceptionally strong winds
1200 31 January Depression located over North Sea 968mb
1345 31 January First loss of lives - 133 die, as 'Princess Victoria' ferry abandons ship east of Belfast
1700 31 January Waves over six metres high in Lincolnshire
1200 1 February Depression over Northern Germany 984mb

Why was there no warning?
In 1953 there were no satellites or computers to make an accurate forecast, and there was no single body responsible for flood warnings.

While communities did have emergency plans, many telephone lines had been brought down by the gales and affected by the flooding, so large scale evacuations were not possible.

Virtually no warning of the impending disaster was passed to the southerly counties until it was too late.

What has happened since?
Anthony Eden's Conservative government implemented one of the largest ever programmes of building and strengthening of sea defences. However, by 1993, 41% of these were in 'moderate' or 'significant' need of repair.

An inquiry into the disaster recommended that a flood warning organisation be set up. The Met Office responded by helping to establish the 'Storm Tide Forecasting Service', who provide 24 hour forecasts of tidal surge and wave activity.

In 1989, the National Rivers Authority was formed to oversee flood defences in England and Wales. Then in 1996 the Environment Agency was created, giving them overall responsibility for flood defences and flood warnings.

Forecasting accuracy has increased dramatically since the introduction of computer models, both meteorologically and in forecasting surges and coastal water levels.

The future
The east coast of Britain has always been at risk of coastal flooding, and we have been doing our best to resist this since the Romans first built earth banks to protect from coastal flooding some 2000 years ago.

...floods of 1953 were a "once-in-250 year event"...
The devastating floods of 1953 were a "once-in-250 year event". Following the publication of the 'Climate Change Scenarios for the UK' by the UK Climates Impacts Programme, in April 2002, Environment Secretary, Margaret Beckett said that although

"the rise in the UK average sea level may further threaten some low-lying unprotected coastal areas, it is the extremes of sea level storm surges and large waves that could cause most damage".

Sea levels are expected to rise around the UK, and could reach between 26 and 86 cm above the current level in south east England by the 2080s.

Researchers predict that at some east coast locations, extreme sea levels that currently have a 2% chance of occurring could occur 10-20 times more frequently by the 2080s.

The chances of storms and high tides coinciding will continue to increase, so forecasters and warning agencies are facing increasing challenges in warning and protecting coastal communities against flooding.





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