The Met Office Level 3 Heat Health Alert is remaining in place until 0900hrs on Friday 14th August.
There is a 90% probability of Heat-Health criteria being met.
View the full warning at the Met Office Heat Health Watch site.
What are the potential impacts?
The very young, the elderly and the seriously ill are the groups who are particularly at risk of health problems when the weather is very hot. In particular, very hot weather can make heart and breathing problems worse.
For more information