While some areas will remain remain dry, thunderstorms are likely to develop this afternoon and evening from the east and move relatively slowly westwards or northwestwards. Where thunderstorms occur, heavy rain accompanied by frequent lightning is likely with potential for 25 to 30 mm of rain to fall in 1 or 2 hours in a few places and perhaps as much as 50 mm could fall in one or two spots. In a few places there may also be some hail. What should I do? Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. People cope better with power cuts when they have prepared for them in advance. It’s easy to do

consider gathering torches and batteries, a mobile phone power pack and other essential items. If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning. If you are on an elevated area move to lower ground. Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings

What to expect: Spray and sudden flooding could lead to difficult driving conditions and some road closures

There is a small chance that some communities become cut off by flooded roads

Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services

There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost

There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds.

UK Met Office

While some areas will remain remain dry, thunderstorms are likely to develop this afternoon and evening from the east and move relatively slowly westwards or northwestwards. Where thunderstorms occur, heavy rain accompanied by frequent lightning is likely with potential for 25 to 30 mm of rain to fall in 1 or 2 hours in a few places and perhaps as much as 50 mm could fall in one or two spots. In a few places there may also be some hail. What should I do? Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. People cope better with power cuts when they have prepared for them in advance. It’s easy to do

consider gathering torches and batteries, a mobile phone power pack and other essential items. If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning. If you are on an elevated area move to lower ground. Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings

What to expect: Spray and sudden flooding could lead to difficult driving conditions and some road closures

There is a small chance that some communities become cut off by flooded roads

Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services

There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost

There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds.

UK Met Office