The Environment Agency is warning people in Cumbria to take care this weekend, as there are flood alerts in place.
Two 24ft (7.3m) long, high-volume water pumps have been dispatched to Cumbria, which are capable of pumping 120,000 cubic litres of flood water a minute - the equivalent of more than 30 Wembley Stadiums.
The Environment Agency is also urging people to check for flood risks, and not to drive through flood water, warning that 1ft (30cm) of water is enough to move a car.
There are two flood warnings in place - at Keswick Campsite in Cumbria, and at Aberystwyth in West Wales - and 23 flood alerts, where flooding is possible, with the EA saying it will issue flood warnings where necessary.
The following flood alerts are in place in Cumbria:
- Rivers Eamont and Lowther to their confluence with the River Eden at Langwathby
- Lower Derwent from Bassenthwaite Lake to the coast at Workington. The Cocker from Crummock Water to Cockermouth. The River Marron from Ullock to its confluence with the Derwent near Bridgefoot
- The Upper Derwent from Seathwaite to Derwent Water
- Rivers Brathay, Rothay and Winster
The Scottish Environment Protection Agency says river levels throughout the region are falling but are expected to rise again on Saturday because of further rain.
The flood alert is primarily focussed in the west of the region. Surface water may also occur during heavier periods of rain but these are expected to be localised and minor.
An amber flood alert has been issued for Dumfries and Galloway.
Melting snow and heavy rainfall have caused the River Esk and River Nith to rise, which may cause some localised flooding.
A flood alert has been issued for the River Eden in Cumbria due to a forecast of heavy rain from midnight until noon tomorrow (29th December 2012).
The alert covers Upper River Eden, through the Eden Valley, Warwick Bridge, Crosby on Eden,Carlisle and out to the Solway Firth. Low lying land and roads are expected to start flooding first thing in the morning.
A flood alert has been issued for the Scottish Borders.
The Scottish Environment Protection Agency say that heavy rainfall throughout the day, combined with melting snow may result in localised flooding.
The areas most at risk are in the west of the region.
A flood alert has been issued for the Upper Derwent, from Seathwaite to Derwent Water.
The Environment Agency say further heavy rain is forecast throughout Friday, which will result in the rivers and lakes rising further.
Higher levels of water than yesterday are expected.
A flood alert has been issued at Port Carlisle, due to the high tide at 11.45am.
Low lying land and roads along the Gretna to Silloth coastline may be affected by flooding, before and after high tide.