Britain faces the prospect of gas rationing for the first time, experts have warned.
Energy expert Ann Robinson told the Independent: “If this dreadful weather continues for the next two or three weeks we should be very worried, because if we get into a position where we do run out of gas there is not a lot that can be done in the short term."
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Temperatures will reach around 28 Celsius (82F) at their highest.
A minute's silence will be observed at 11am on Thursday in remembrance of those who lost their lives in the Manchester Arena attack.
New research has found those who consumed two cups had a 35% reduced risk, and for those who drank five cups, the risk halved.