Weather forecasters are warning people in the North East to expect thunderstorms from Wednesday evening.
A yellow warning has been issued by the Met Office for the County Durham area, including Durham, Darlington and Hartlepool.
The alert runs between 6pm on Wednesday and Friday morning.
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A Met Office spokesperson said: "Some places are likely to see thunderstorms later Wednesday through to Friday with the potential for travel disruption and flooding.
"Although there remains significant uncertainty in location and timing, areas of thunderstorms are expected to move north east across parts of England and Wales from late Wednesday through to Friday morning.
"Whilst not all locations will be affected, some intense thunderstorms may occur during this period with torrential rain, hail, frequent lightning and strong gusty winds possible."
Here is an hour-by-hour weather forecast for Wednesday.
8am : 16C/ feels like 14°/ wind gust 20mph
9am : 17C/ feels like 15C/ wind gust 19mph
10am : 18C/ feels like 16C/ wind gust 18mph
11am : 19C/ feels like 17C/ wind gust 17mph
12pm : 19C/ feels like 17C/ wind gust 19mph
1pm : 20C/ feels like 18C/ wind gust 19mph
2pm : 20C/ feels like 18C/ wind gust 19mph
3pm : 21C/ feels like 19C/ wind gust 19mph
4pm : 20C/ feels like 18C/ wind gust 20mph
5pm : 19C/ feels like 18C/ wind gust 18mph
6pm : 19C/ feels like 17C/ wind gust 18mph
7pm : 18C/ feels like 17C/ wind gust 15mph
8pm : 16C/ feels like 15C/ wind gust 14mph
9pm : 15C/ feels like 14C/ wind gust 12mph
10pm : 14C/ feels like 14C/ wind gust 11mph
11pm : 14C/ feels like 13C/ wind gust 9mph
