Storm Claudia: experts comment on flood risks

Storm Claudia is set to hit the UK on Friday, 14 November. Hydrologists from the University of Reading share expert comments on the impact extensive rain could have on parts of the country. 

To arrange interviews, contact the University of Reading Press Office on 0118 378 5757 or pressoffice@reading.ac.uk

Professor Hannah Cloke, Professor of Hydrology at the University of Reading, said: “Storm Claudia is expected to bring intense rainfall to a wide region across central and southern England and Wales, with the Met Office issuing Amber warnings for areas likely to receive up to 150mm of rain, close to six inches, in under 24 hours. 

“Having so much rain significantly increases the risk of surface water and river flooding. It may seem a paradox that some parts of England, particularly in the Midlands and North, which are still experiencing long-term drought conditions, are now being warned of potential floods. 

“Floods do occur in drought-hit areas in Britain, although our increasingly extreme climate, with prolonged periods of wet and dry weather, means this could be more likely as we continue to heat our atmosphere.

“This is the wrong kind of rain to break the drought. Half-a-foot of rain could cause floods, and while it may help to replenish supplies in some places, we really need consistent, less intense rainfall over a much longer period.

“This pattern of weather and ground conditions presents a complex hydrological hazard, increasing risks of flooding and overwhelming local drainage and infrastructure. People living in the Amber and Yellow warning zones should remain vigilant, as the storm poses a genuine threat to roads and railways, people's homes, and potentially to people's lives.”

Dr Jess Neumann, Associate Professor in Hydrology at the University of Reading, said: “Large parts of central UK are under an Amber weather warning as storm Claudia looks set to bring extensive amounts of rain. 

“The risk of flooding will greatly increase on Friday and into the weekend due to sudden intense rainfall and rising river levels. Flash flooding from intense rainfall is notoriously tricky to forecast and all places under the weather warnings are potentially at flood risk.

“A number of flood alerts are already active across the Midlands - river levels will continue to rise following the rainfall, and local communities should anticipate that alerts could be raised to flood warning status, requiring immediate action to protect life and property. 

“People are strongly advised to check their flood risk online, sign up to free alerts and implement early preparedness actions as required. 

“Flood preparedness actions include having a planned escape route and staying informed by checking weather updates regularly. If you have an emergency flood kit or property-level defences, make sure they are accessible.”