Flood Alert Issued for Upper Bristol Avon Area in Gloucestershire and Wiltshire

Alert Details

The Environment Agency has issued a flood alert for the Upper Bristol Avon area within the Wessex region. This severity level 3 alert was officially raised on February 18, 2026, at 1:43 PM following high river levels.

Affected Areas

The alert covers geographic regions across Gloucestershire, South Gloucestershire, and Wiltshire. Specific watercourses identified in the alert include the Bristol Avon, Tetbury Avon, Sherston Avon, and Dauntsey Brook. Locations forecast to be most affected include low-lying land and roads in Tetbury, Badminton, Brook End at Luckington, Corsham, Lacock, and the road at Reybridge.

What You Should Do

Residents and visitors are advised to avoid using low-lying footpaths and any bridges near local watercourses. The Environment Agency is closely monitoring the situation and will issue further alerts or warnings if conditions deteriorate.

Expected Conditions

River levels at the Fosseway, Brokenborough, Great Somerford, and Dauntsey gauges are currently falling slowly; however, levels are expected to increase again due to today’s rainfall. Flooding is forecast to affect locations near the Bristol Avon and its tributaries, with low-lying land and roads expected to be most vulnerable.

Timeline

The alert is effective as of February 18, 2026, and flooding remains possible throughout the current week. This message is scheduled to be updated by 12:00 PM on February 19, 2026, or as the situation changes.