The first ever thunderstorm warning for Cheshire has been issued by the Met Office.
Heavy rain and severe weather conditions are expected to batter the county on Friday. The yellow weather alert will be in force from 11am until 8pm.
Forecasters are warning that driving conditions will be impacted, there is the potential for flooding and possible lightning strikes may affect power supplies.
The Met Office says: "Heavy showers, which will most likely become thundery in places, are expected to develop quite widely across parts of England and Wales later Friday morning and through the afternoon.
"Some of the showers are likely to become focused into slow-moving bands, particularly over southwest England, with some locations receiving around 20mm in an hour."
Thunderstorm warnings were only introduced by the weather service last month, as part of a number of changes to its National Severe Weather Warnings Service.
We've taken a look at when the thunderstorms are due to hit different parts of Cheshire.
Chester and Ellesmere Port
Rain is predicted to arrive in Chester from 4am on Thursday morning (July 12) until 9am, to be followed later in the day by heavier showers from 6pm.
Temperatures will peak at 22C and the skies will be overcast for most of the day.
Thunderstorms are forecast between 11am and 8pm on Friday, which will be cloudy.
Crewe and Nantwich
There is a 50% chance of light rain at 6am, but it looks like it will remain largely dry on Thursday. Light showers could return later in the evening.
More rain is likely to be on the way for the area on Friday - when the weather warning is in force - and the highest temperature for the day is set to be 23C.
The thunderstorms warning does not apply to Macclesfield. However, much like the rest of the county, there is little chance of any sunshine before Saturday. Cloudy but dry conditions expected on Thursday and Friday.
Northwich and Winsford
Morning rain showers are expected to be followed by a largely grey and overcast day.
Heavier rain is set to hit around 4pm on Friday, and temperatures will peak at 23C.
The Met Office alert does cover Warrington and its surrounding areas. Heavy rain is forecast for Thursday morning, but the rest of the day looks set to be dry.
Showers are expected to kick in from 1pm until 7pm on Friday.
There are highs of 23C forecast for both Thursday and Friday.
Runcorn and Widnes
Light showers are expected to make an appearance from 6am on Thursday morning but sunny intervals will characterise the afternoon.
The forecast for Friday is a similar story, although showers are expected for the period the Met Office weather warning is in force for.