TechnicalGIS Environmental News Desk

Flood alert issued for the Suffolk and Essex coast from Felixstowe to Clacton including Orwell and Stour estuaries

The Environment Agency reported a flood alert for the Suffolk and Essex coast from Felixstowe to Clacton including Orwell and Stour estuaries in its 12 November 2026 update.

Revision 1 · Published 2026-11-12T22:10:37Z · Status: current

Map meaning: The area is an approximation of the official warning-area boundary, not a measurement of flooded land, people affected or damage.

Environment Agency flood-warning area for the Suffolk and Essex coast from Felixstowe to Clacton including Orwell and Stour estuaries.

Source facts

Area
The Suffolk and Essex coast from Felixstowe to Clacton including Orwell and Stour estuaries
County
Essex, Suffolk
River or sea
North Sea, River Orwell, River Deben
Warning status
Flood alert
Warning raised
2026-11-12T15:25:11Z
Source update
2026-11-12T15:25:00Z
Approximate warning-area boundary size
48.299 km² — not flooded area
Area calculation
Spherical polygon-area approximation using a mean Earth radius of 6,371.0088 km.

Environment Agency message

High tides this evening may lead to flooding.
Flooding is possible from 00:30am to 2:30am on Friday 13 November.
The flood gates at Felixstowe seafront will be closed. The waterfront at Pin Mill, and The Strand at Wherstead under the Orwell Bridge may be flooded. Water may be on the quay at Mistley. 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.

Newsroom files

This uses Environment Agency flood and river level data from the real-time data API (Beta). Data documentation · Open Government Licence v3.0

Coverage

This first monitoring area follows the Environment Agency feed in England. Wales, Scotland and Northern Ireland are not covered by this feed.

Revision history

Revision 1 (2026-11-12T22:10:37Z) · Revision 3 (2026-11-13T12:15:50Z)