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Flood Alert

Flood Alert: The tidal Deben estuary - 11th September 2026

📍 Suffolk 🌊 River Deben, North Sea 📅 11 September 2026

A Flood Alert was issued for The tidal Deben estuary in Suffolk on 11th September 2026. Affected watercourses included the River Deben, North Sea.

During this event, FloodRadar monitoring gauges recorded notable rises. The River Ore at Framlingham rose 0.10m, peaking at -0.02m, while the River Fromus at Saxmundham climbed 0.05m.

Environment Agency advice issued

High tides overnight may lead to flooding.  Flooding is possible between 12am and 2am overnight on Saturday 12th September.  Tide levels will be high around the boat yard in Felixstowe Ferry hamlet at the end of Ferry Road, and along riverside areas in Woodbridge and Waldringfield, as well as in surrounding marshland. The detailed forecast is for a peak level at Harwich of 2.51mAODN at 1am, on Saturday 12th September, which is 0.31m above tide tables, wind force 3, southerly. Tides are expected to be higher than usual, due to the forecast weather conditions during spring tides.  We are closely

Monitoring gauges during this event

StationRiverRisePeak
Framlingham River Ore +0.10m -0.02m
Saxmundham River Fromus +0.05m 1.18m

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.