A Flood Alert was issued for Christchurch Harbour in Bournemouth, Christchurch and Poole on 11th September 2026. Affected watercourses included the English Channel.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Stour at Iford Bridge rose 1.36m, peaking at 1.13m, while the Uddens Water at Ferndown Tricketts Cross climbed 0.07m.
Environment Agency advice issued
High tides today may lead to flooding. Flooding is possible from 7:30pm and 11:45pm on 11/09/2026. The detailed tidal forecast for those who use it is for a peak level at Christchurch Harbour of 1.20mAODN at 9:45PM, 11th September 2026, with force 3 North Westerly winds. (mAODN is height above average sea level.). We are closely monitoring the situation No operational flood gates will need be closed for this tide. Take care and avoid walking, cycling or driving through flood water . This message will be updated by 10:30AM on 12 September 2026 or as the situation changes.
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Iford Bridge | River Stour | +1.36m | 1.13m |
| Ferndown Tricketts Cross | Uddens Water | +0.07m | 0.36m |