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Flood Alert

Flood Alert: The Essex coast from Clacton to and including, St Peters Flat and the Colne and Blackwater estuaries - 18th July 2026

📍 Essex 🌊 North Sea 📅 18 July 2026

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 18th July 2026. Affected watercourses included the North Sea.

Local monitoring gauges did not record a significant level change for this event, which may indicate a precautionary or rainfall-forecast-based alert.

Environment Agency advice issued

High tides overnight may lead to flooding. Flooding is possible between 2am and 4am tomorrow, Sunday 19 July. 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 2.85mAODN at 3am tomorrow, Sunday 19 July which is 0.6m above tide tables, Wind Force 5, Northerly. Tides are expected to be higher than usual, due to the forecast weather conditions during spri

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This report is automatically compiled from Environment Agency flood warning records and FloodRadar river-level monitoring data. Figures are observed gauge readings during the event period. This is a historical record, not a live warning — always check current flood warnings and gov.uk.