'Extreme' travel warning issued for Brits heading to France, Spain and Portugal

'Extreme' travel warning issued for Brits heading to France, Spain and Portugal A "heat-dome" settling over western Europe could bring temperatures of up to 40C by Wednesday, with this latest UK heatwave expected to surpass the June record set in Hampshire in 1976 The UK Government has issued an 'extreme' travel warning for Brits heading to France, Spain and Portugal as a heatdome settles over western Europe. The weather front is predicted to deliver temperatures approaching 40C by Wednesday, with this latest heatwave anticipated to eclipse the June record established in Hampshire in 1976. Red heat alerts have been issued in France, Spain, and other nations across western and central Europe as heatwave conditions are forecast to intensify in the coming days. More than half of France's regions are currently under the harshest weather warning. Tragically, two children aged two and four were found dead in their family car in the town of Carpentras in the south of France, in an incident believed to be linked to the weather. In a section on the Foreign Office's website titled 'extreme weather', an update for France issued today reads: "Find out what you can do to prepare for and respond to extreme weather and natural hazards. In summer months, there is a risk of higher than normal temperatures in France. Check current weather forecasts and read about how to protect yourself on the Meteo France website." A similar warning for Spain reads: "Extreme weather can affect many areas of Spain, particularly over the summer months. Follow the Spanish Meteorological Office (AEMET) and European Meteorological Services for severe weather warnings." And the Portugal advice reads: "In Summer months, there is a risk of higher than normal temperatures in Portugal. Check current weather forecasts and read about how to protect yourself on the Portuguese Institute for Sea and Atmosphere website." Back in the UK, record high temperatures are forecast over the coming days. Met Office spokesman Grahame Madge said: "The Met Office is flagging 39C as a headline maximum temperature on Thursday, most likely for somewhere in London or the South East. Forecast temperature values are indicative and are subject to a slight range either side. "It is possible we could see temperatures higher than the 39C if the final values are at the upper end of our narrow range. It is important to remember that the temperature value is only one element of this extreme heatwave story. The other major factor is the high humidity which for many will make the intense heat even harder to endure." Throughout the night, temperatures remained above 20C at nine sites across England, registering what the Met Office classifies as a tropical night. Scorching temperatures gave way to thunderstorms and lightning strikes across England in the early hours of Tuesday morning. Commuters also faced significant disruption across London's transport network on Tuesday morning. The Elizabeth Line was hit by flooding caused by heavy rainfall, resulting in no service running between Heathrow Terminals 2 and 3 and Heathrow Terminal 4, Transport for London confirmed. Passengers on the Mildmay Line also faced severe delays, with the line operating a reduced service due to the sweltering conditions. On the national rail network, soaring temperatures are also forecast to cause sagging overhead electric wires, buckled rails and lineside fires, with passengers urged to avoid non-essential travel and, if a journey is unavoidable, to ensure they have a bottle of water with them. Avanti West Coast announced it intends to operate fewer services than normal between Tuesday and Thursday, warning that "there's a risk of further disruption". Chiltern Railways has scrapped more than half its services across those three days "to ensure the safe operation of the railway". The operator said: "We strongly advise you to avoid travelling if possible." The RAC revealed it is handling 10% more breakdowns than usual at this time of year and expects demand to "increase significantly as temperatures peak". The scorching weather is also set to cause considerable disruption for parents as schools shut or close early to shield children from the heat. Pupils have been told they may wear PE kit rather than full school uniform, which typically includes long trousers and blazers. A number of after-school clubs have also been called off.