The map shows areas far inland will sink below the annual flood level across the stretch.
Flooding will eventually impact Cambridge, Peterborough, Boston and Lincoln inland.
Further north, the climate crisis will travel up the Humber, pushing several low-lying areas on its banks under the flood level.
One floodplain will stretch from Kilnsea at the Humber’s mouth and up top Hull, going as far inland as the Yorkshire village of Brandesburton.
Further along, the rising Humber will also plunge another vast area of the northeast under flood zones, encompassing Doncaster, Scunthorpe, Howden and Selby.
The Humber will also cause areas further south to drop under the flood level, including a channel from Gainsborough down to Lincoln and another through the Lincolnshire town of Brigg.