River Ouse stabilises in York as PM visits flood-hit areas
People advised not to travel by rail in Cumbria, Lancashire and Yorkshire
Thousands of homes evacuated across the north of England
Floods cause major landline phone problems
Updates on Monday 28 December
In the village of Summerseat, Greater Manchester, the River Irwell has burst its banks - causing part of the Waterside Restaurant to collapse.
Image source, Trevor Priestley
BBC Radio Manchester reporter Jonathan Ali says the entire village has been cut off due to flooded roads.
Torrential rain is also causing major problems across Greater Manchester.
More than 11,000 homes are without power in Rochdale and several roads are closed, due to standing water.
A total of 24 flood warnings have been issued in Greater Manchester, which means flooding is expected and immediate action is required.
Among the worst affected areas are Ramsbottom, Radcliffe, Bury and Rochdale.
The Met Office issued two of its most serious red weather warnings - meaning danger to life - for Lancashire and Yorkshire.
Image source, paResidents in Whalley and Ribchester in Lancashire were forced to abandon their homes when flood waters poured through the streets after torrential downpours.
Todmorden in West Yorkshire has also been hit and the waters are continuing to rise as the rain keeps falling.
Lancashire and Yorkshire are bearing the brunt of flooding, with 15 severe warnings in place and homes evacuated.
Image source, PAThe Met Office also issued two severe weather warnings, external, meaning danger to life, for the two counties.
Several rivers have burst their banks, and homes in Ribchester and Whalley, Lancashire, have been evacuated, external.
I'll be updating you with news, weather and travel alerts after several weather warnings have been issued for northern England.