Spectacular thunderstorms hit London overnight, bringing heavy rain, frequent lightning and flash flooding, according to multiple reports. Thousands of residents are reported to wake to intense weather as torrential downpours move through the city. The storms produce large numbers of lightning strikes, with reports describing thousands of flashes across the affected areas. As rainfall intensifies, flash floods form, prompting concern about street-level flooding and dangerous conditions. While the reports focus on the widespread nature of the storms and the disruption to residents, they do not provide consistent details on specific locations, the number of incidents, or official casualty figures in the excerpts provided. Overall, the coverage agrees that the main impacts are severe storm activity—particularly lightning—and sudden flooding linked to the volume and speed of the rainfall. The reports describe the events as dramatic and disruptive, with conditions driven by fast-changing thunderstorm weather rather than prolonged rainfall alone.