A Flood Alert was issued for River Thames from Hampton and Thames Ditton to Teddington in Greater London, Kingston upon Thames, Richmond upon Thames, Surrey between 3rd and 5th March 2026. Affected watercourses included the River Thames.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Thames at Thames Ditton Island rose 0.74m, peaking at 5.51m, while the River Thames at Sunbury Lock climbed 0.40m.
Environment Agency advice issued
High river levels today may lead to flooding. Flooding of low lying land is possible on 05 March 2026. The next high tide is expected at Kingston at 04:15 on 06 March 2026 and is forecast to reach between 4.80m - 4.94m. The following high tide is expected at 17:00 on 06 March 2026 and is forecast to reach between 4.82m - 4.96m. It is forecast to be a dry day. We expect river levels to remain high over the next few days. We are closely monitoring the situation. We are monitoring rainfall and river levels. Avoid using low lying footpaths and any bridges near local watercourses. Go to River level
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Thames Ditton Island | River Thames | +0.74m | 5.51m |
| Sunbury Lock | River Thames | +0.40m | 3.08m |
| Chertsey Lock | River Thames | +0.32m | 3.30m |