From heatwave to downpour. Even the ducks are walking in northern Europe today as torrential rains have brought flooding and transport chaos to several regions. Belgium is one of the worst hit, where the rain began overnight and got steadily worse throughout the morning. The work for rescue services began just before midnight, but they were rapidly swamped by the number of distress calls. It is the same story in northern France, with many major roads in and around Lille flooded, and rainfall beating 100-year old records. Motorway and rail traffic has been severely disrupted, and several campsites had to be evacuated in a hurry as water swirled around holidaymakers’ knees.