Flood Alert Issued for Upper River Wey Across Hampshire, Surrey, and West Sussex

Flood Warnings medium Environment Agency · · Hampshire, Surrey, and West Sussex

The Environment Agency has issued a flood alert for the Upper River Wey, warning of potential flooding in low-lying areas and roads, particularly near Alton.

Alert Details

The Environment Agency has issued a flood alert for the Upper River Wey within the Thames area. This alert indicates that flooding is possible and residents should remain vigilant as river levels remain high.

Affected Areas

The geographic scope of this alert includes parts of Hampshire, Surrey, and West Sussex. Specific concern has been noted for low-lying land and roads in the Alton area.

What You Should Do

Residents and visitors in the affected regions are advised to avoid using low-lying footpaths and any bridges located near local watercourses. For the latest information, individuals should check current river levels online through official government channels.

Expected Conditions

High river levels are currently impacting parts of the River Wey. While river levels are expected to remain high, they are currently forecast to stay stable throughout the day. Light rainfall is predicted for today, February 20, and tomorrow, February 21. The primary hazards are the flooding of roads and low-lying land.

Timeline

The alert was officially raised at 08:43 on February 20, 2026. The Environment Agency is currently monitoring rainfall and river levels while liaising with local authorities and emergency services. An update to this message is expected by 20:00 on February 21, 2026, or sooner if the situation changes.

Source: Environment Agency Official Notice