The Environment Agency slightly lowered the number of flood risks and alerts across the country this evening, but said that major rivers are rising and warned that further rain is expected tomorrow.
Flood warnings are applied where flooding is expected and immediate action is required, the Environment Agency said.
Of thee 77 warnings, 38 were in the Midlands and 15 were in the Anglia region.
Monday is expected to bring low river flood risks and minor disruption to parts of the southwest, but the biggest impact is expected on Tuesday, when heavy rain expected in the southwest and Wales.
The agency warned that "significant impact" was possible, such as flooding affecting properties and parts of communities as well as disruption to travel.
– The Environment Agency
There is also the potential for significant localised surface water disruption during Tuesday across Wales and the southwest of England.
Weather experts said communities in Wales, central England, the south west and Cumbria had seen most of the rain after 30mm (1.18ins) fell in some places.
Rising temperatures of up to 12C sparked a rapid thaw of the snow and ice which has built up in the recent cold snap, further exasperating potential flooding problems.
Search for flood warnings by postcode, river, or town, here.