A Flood Alert was issued for Christchurch Harbour in Bournemouth, Christchurch and Poole on 29th September 2026. Affected watercourses included the English Channel.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Stour at Iford Bridge rose 1.51m, peaking at 1.23m, while the River Avon at Knapp Mill climbed 0.05m.
Environment Agency advice issued
High tides this evening may lead to flooding. Flooding is possible from 9:00PM to 1:00AM on the 29 September 2026. Areas most at risk include Christchurch Harbour and tidal stretches of the Lower Stour and Avon. The detailed tidal forecast for those who use it is for a peak level at Christchurch Harbour of 1.26mAODN at 11:00PM, 29 September 2026, with force 4 South Easterly winds. (mAODN is height above average sea level.). After this high tide, conditions become more settled. We are closing flood gates and closely monitoring the situation. Avoid coastal roads, footpaths and carparks, whic
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Iford Bridge | River Stour | +1.51m | 1.23m |
| Knapp Mill | River Avon | +0.05m | 0.35m |