THE most detailed map of Southampton ever drawn up has exposed the city's risk of devastating flash flooding.
The remarkable 3D image - accurate to within six inches - highlights the parts of the city most in danger of summer downpours like those that swamped city streets last month.
Environmental experts are warning that heavy storms will be more frequent as climate change takes effect.
Southampton City Council last night called on the Government to help protect the homes, businesses and critical infrastructure most at risk.
See today's Daily Echo for a poster showing the areas of Southampton at risk.