The Met Office has issued a warning for heavy rain in Cumbria.
It said rain would be heavy and persistent today, until around 9pm, bringing the risk of disruption to transport and infrastructure.
Rain is expected to affect many parts of England and Wales through Monday before easing and clearing into the North Sea tonight.
Within this larger band, a corridor of heavy, persistent and perhaps thundery rainfall is expected to develop.
There is some uncertainty in the track of this heavier rain but 20-40 mm of rain is expected to fall in many areas within the warning area, with a chance of 60-80 mm falling in a few places, much of which would fall in three to six hours.
At this stage, the Met Office said, this very heavy rain appears more likely to fall over north west Wales and North West England.
What to expect
- There is a small chance that homes and businesses could be flooded, causing damage to some buildings
- There is a small chance that some communities will be temporarily cut off by flooded roads
- Spray and flooding is likely to lead to some difficult driving conditions and road closures
- Where flooding occurs, there is a chance of delays or cancellations to train and bus services
- There is a slight chance of power cuts and loss of other services to some homes and businesses