# Flood alert: The tidal Deben estuary

**Event type:** Flood warning  
**Status in source feed:** current  
**Area:** The tidal Deben estuary  
**County:** Suffolk  
**River or sea:** River Deben, North Sea  
**Warning raised:** 2026-11-12T15:18:10Z  
**Source update:** 2026-11-12T15:18:00Z  
**Dataset checked:** 2026-11-12T22:00:44Z  
**Official warning-area boundary:** 23.306 km²

## What this measures

The mapped outline is the Environment Agency's official flood-warning area. Its approximate area uses a spherical calculation and is not an estimate of flooded land, people affected, casualties, displacement or damage. The first release uses warning data only; it does not map observed inundation.

## Source message

> High tides this evening may lead to flooding.
> Flooding is possible from 00:30am to 2:30am on Friday 13 November.
> 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 2.55mAODN at 1:30am on Friday 13 November, which is 0.70m above tide tables, Wind Force 6, north westerly. No further high tides are expected over the coming days.
> We are closely monitoring the situation .
> Avoid coastal roads, footpaths and carparks, which may be flooded.
> This message will be updated by 10:00AM on Friday 13 November or as the situation changes.

## Source and reuse

This uses Environment Agency flood and river level data from the real-time data API (Beta). Data are provided under the [Open Government Licence v3.0](https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/). [Open the source record](https://environment.data.gov.uk/flood-monitoring/id/floods/054WACDV4A). Boundaries are from [the Environment Agency API](https://environment.data.gov.uk/flood-monitoring/doc/reference).

Prepared by TechnicalGIS Environmental News Desk. Dataset revision 1.