It's very, very rare we get one of these warnings from the Met Office. But the fire risk for the week ahead poses a 'serious threat'.
Just days after experiencing temperatures above 40°C, the UK is being told to prepare for another heatwave in August.
If this doesn't make you realise how serious the heatwave is, nothing will: The UK will become one of the hottest places ON EARTH by Tuesday.
Experts are now convinced that Britain will reach 40C this week - but where are we likely to see a the hottest ever UK temperature?
Britain is set to boil over the next seven days, and a more intense heatwave could potentially bring temperatures of 40°C to our shores.
Did somebody say beer garden weather? Updated forecasts show that the July heatwave will be felt in Britain 'by the end of next week'.
Get the BBQ out, and pencil in a 'tactical sickie'. Blazing sunshine is heading our way next week, with London serving as the UK's hot-spot.
Talk about a forecast fit for a queen, eh? With the Jubilee Weekend granting us a four-day bank holiday, the weather outlook is a bright one!
Barbeques and beer gardens at the ready - London temperatures are set to pick up substantially between now and the Easter weekend.