A Flood Alert was issued for The Essex coast from Clacton to and including, St Peters Flat and the Colne and Blackwater estuaries in Essex on 25th October 2026. Affected watercourses included the North Sea.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Blackwater at Stisted rose 0.23m, peaking at 0.73m, while the Sandon Brook at Sandon Bridge climbed 0.16m.
Environment Agency advice issued
High tides this evening may lead to flooding. Flooding is possible Flooding is possible from 10:00pm Sunday 25th October to 12:00am Monday 26th October. Clacton Promenade, Lee-over-Sands and Brightlingsea sea front may see some wave overtopping and spray. The Strood at Mersea Island, Coast Road and car parks on the front at West Mersea, and the Hythe and Promenade at Maldon may be flooded. The detailed forecast is for a peak level at Clacton of 3.33mAODN at 11:00pm, on Sunday 25th October, which is 0.78m above tide tables, Wind Force 6, South-Westerly. Tides will remain high over the next c
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Stisted | River Blackwater | +0.23m | 0.73m |
| Sandon Bridge | Sandon Brook | +0.16m | 0.25m |
| Lexden | River Colne | +0.16m | 0.41m |
| Appleford Bridge | River Blackwater | +0.14m | 0.60m |
| Earls Colne | River Colne | +0.10m | 0.24m |
| Guithavon Valley | River Brain | +0.06m | 0.27m |