Four amber and five yellow weather warnings have been issued by the Met Office from Friday to Monday.
The four amber weather alerts for rainfall warn of heavy rain, flooding and disruption to travel in parts of the UK.
Three of these weather alerts in North West England, South West England, Wales and Yorkshire and Humber are in effect from 3pm on Saturday to 3pm on Sunday.
The weather forecaster advises homes and businesses could be flooded and damaged, fast-flowing or deep floodwater is likely, causing danger to life and train and bus services cancellations and delays are also likely.
Additionally, there is a chance spray and flooding might create difficult driving conditions and cause road closures and there is a good chance some communities will be cut off by flooded roads.
Power cuts and loss of other services to some homes and businesses are also likely.
The areas specifically affected by these amber alerts across England and Wales are:
North West England
- Greater Manchester
South West England
- Blaenau Gwent
- Merthyr Tydfil
- Neath Port Talbot
- Rhondda Cynon Taf
Yorkshire & Humber
- North Yorkshire
- West Yorkshire.