TechnicalGIS Environmental News Desk
The Environment Agency reported a flood alert for the Essex coast from Clacton to and including, St Peters Flat and the Colne and Blackwater estuaries in its 12 November 2026 update.
Revision 1 · Published 2026-11-12T22:10:36Z · 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.
High tides this evening may lead to flooding.
Flooding is possible from 00:45am to 2:45am on Friday 13 November.
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 2.71mAODN at 1:45am on Friday 13 November, which is 0.61m above tide tables, Wind Force 5, north westerly. No further high tides are expected over the coming days.
We are closely monitoring the situation .
Take care and avoid walking, cycling or driving through flood water.
This message will be updated by 10:00AM on Friday 13 November or as the situation changes.
This uses Environment Agency flood and river level data from the real-time data API (Beta). Data documentation · Open Government Licence v3.0
This first monitoring area follows the Environment Agency feed in England. Wales, Scotland and Northern Ireland are not covered by this feed.
Revision 1 (2026-11-12T22:10:36Z) · Revision 3 (2026-11-13T12:15:49Z)
