Flood Alert Issued for East Coast of Dorset; Swanage at Risk of Wave Overtopping

Alert Details

The Environment Agency has issued a flood alert for the East coast of Dorset within the Wessex area. This alert indicates that flooding is possible during the high tide window on the morning of February 18, 2026.

Affected Areas

The geographic scope of this alert covers the East coast of Dorset, including regions within Bournemouth, Christchurch and Poole, as well as the Dorset Council area. Swanage has been identified as the location most at risk, specifically the lower end of High Street road near the Pier Head.

What You Should Do

Residents and visitors are advised to avoid parking vehicles at the lower end of High Street in Swanage due to the threat of wave overtopping and flying debris. The public should stay away from coastal roads, footpaths, and carparks that may be subject to flooding. Do not put yourself or others at risk by entering potentially hazardous coastal areas.

Expected Conditions

A peak tidal level of 1.0mAODN is forecast at Bournemouth at 9:20 AM. Conditions include waves reaching heights of 2.70 meters and south-easterly winds at force 6. These factors contribute to the risk of wave overtopping and flooding of low-lying land along the English Channel.

Timeline

The flood alert is effective from 07:00 AM to 11:00 AM on 18 February 2026. The Environment Agency is closely monitoring the situation and expects to provide an update by 3:00 PM on 18 February 2026, or sooner if conditions change significantly.