Flood Alert Issued for River Thames in Henley, Remenham, and Medmenham Areas

Flood Warnings medium Environment Agency · · Buckinghamshire and Oxfordshire

High river levels on the Thames have prompted a flood alert for parts of Buckinghamshire and Oxfordshire, with flooding expected on low-lying land and roads.

Alert Details

The Environment Agency has issued a flood alert for the River Thames and its tributaries. The alert was raised at 09:19 on February 25, 2026, due to high river levels following recent weather patterns.

Affected Areas

The alert specifically covers the River Thames for Henley, Remenham, and Medmenham, including the Assendon Stream and Hambledon Brook. The geographic scope includes portions of Buckinghamshire, Oxfordshire, Windsor and Maidenhead, and Wokingham.

What You Should Do

Residents and visitors are advised to avoid using low-lying footpaths and any bridges near local watercourses. It is recommended to monitor river levels online for the most current updates. The Environment Agency is currently liaising with local authorities and emergency services to manage the situation.

Expected Conditions

River levels are currently high but are reported to be slowly declining. Flooding of low-lying land and roads is expected to continue throughout Wednesday, February 25, 2026, particularly in the Henley on Thames, Remenham, and Medmenham areas. Forecasts indicate very little rainfall for today and tomorrow, which is expected to allow river levels to continue their gradual decline over the next few days.

Timeline

The alert is effective immediately as of February 25, 2026. An update to this message is scheduled to be provided by 20:00 on February 26, 2026, or sooner if the situation changes significantly.

Source: Environment Agency Official Notice