Heatwave smashes European records For the second time in a month, a high pressure system is drawing scorching air from the Sahara desert, breaking temperature records Latest heatwave caused by dome of high pressure known as Omega Block – because shape resembles Greek letter Jul 24: All-time records registered Degrees Celsius Jul 25, London: Could break highest-recorded temperature of 38.5C NETHERLANDS 39.3C GERMANY 40.5C BELGIUM 39.9C Jul 23, Bordeaux: Temperature of 41.2C is highest since records began Jul 25, Paris: 41C forecast. Red alert issued in northern France June, Vérargues: New national temperature record of 46°C registered JETSTREAM Sources: AccuWeather, WMO © GRAPHIC NEWS