The Met Office announced amber heat warning is leading to fears that music and sports events could decide to cancel, after the taxpayer-funded officials warned that it could be too hot to work .
The mercury in central, southern and eastern England will soar today amid a heatwave blasting the nation - with the hot weather set to last until at least the weekend.
During a tropical night that saw temperatures still at 20C (68F) at midnight in London, Twitter users were posting memes about having trouble getting to sleep.
Ministers are drawing up plans for Britain s first national heatwave emergency response following a Met Office amber heat warning , despite critics claiming alarmism.