A Flood Alert was issued for Tidal Thames riverside from the Thames Barrier to Putney Bridge in City of London, Greater London, Greenwich, Hammersmith and Fulham, Kensington and Chelsea, Lambeth, Lewisham, Newham, Southwark, Tower Hamlets, Wandsworth, Westminster on 26th October 2026. Affected watercourses included the River Thames.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Thames at Thames Ditton Island rose 0.42m, peaking at 4.80m, while the River Thames at Kingston climbed 0.32m.
Environment Agency advice issued
There is no longer a threat of flooding. Weather conditions are expected to improve and no further flooding is expected. We will continue to monitor the situation and will issue further alerts or warnings if necessary. Continue to take care on waterside roads and footpaths and don't put yourself in unnecessary danger.
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Thames Ditton Island | River Thames | +0.42m | 4.80m |
| Kingston | River Thames | +0.32m | 4.74m |
| Teddington Lock | River Thames | +0.26m | 0.29m |
| Molesey Lock | River Thames | +0.25m | 0.36m |
| Trowlock Island | River Thames | +0.24m | 4.73m |
| Shepperton Lock | River Thames | +0.15m | 0.30m |
| Walton | River Thames | +0.11m | 3.46m |
| Sunbury Lock | River Thames | +0.11m | 0.36m |