The Environment Agency issued a flood alert for Portsmouth, Hampshire, on February 21, 2026, because high groundwater levels are expected to flood low-lying land and roads. This alert comes as the city prepares for a period of unsettled weather that could cause water to pool in vulnerable areas.
The Met Office forecast shows light rain and wind gusts reaching up to 31 mph through February 22, 2026. While the overall risk is currently low, the Environment Agency expects the high water table to cause persistent problems until at least Tuesday, February 24, 2026.
Large sections of the Southsea seafront, including Clarence Esplanade, are currently closed for the Southsea Coastal Scheme construction. These major sea-defence works are expected to continue through the year, with the current stage of the project due to finish in summer 2026.
High groundwater levels can also lead to sewer flooding across the city. Southern Water may need to use pump tankers to manage the flow of wastewater if the ground remains saturated during the wet weather.
Residents in low-lying spots like Milton and Eastney should keep an eye on local conditions according to Portsmouth City Council. Drivers are encouraged to avoid standing water, and seafront users should secure any loose items outside their properties.
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