Southern England was bathed in a spectacular display of lightning as an estimated 29,000 strikes illuminated the region overnight from Monday into Tuesday. The sheer scale of electrical activity, which included cloud-to-cloud flashes and dramatic cloud-to-ground lightning, caused widespread disruption and flash flooding in several areas.
Residents across the affected regions reported being woken by thunderclaps and vivid lightning flashes, prompting a busy night for emergency services. London Fire Brigade attended to approximately 400 calls during the night, including two separate house fires believed to have been ignited by lightning strikes, with another property in Bristol reportedly set ablaze earlier on Monday evening.
Met Office meteorologists explained that the intense thunderstorms were triggered by a combination of factors, namely exceptionally warm and humid conditions across southern England on Monday afternoon. Temperatures soared into the high 20s and low 30s Celsius, providing ample atmospheric energy that was then released by an atmospheric disturbance higher up, leading to the rapid development of large cumulonimbus thunderclouds.
The storms' heavy downpours led to localised flash flooding, impacting roads and potentially causing travel delays for commuters in the morning. Motorists were advised to exercise caution and avoid flooded routes where possible.
As the region continues to clean up from the storm's aftermath, attention is turning to an anticipated heatwave. The Met Office has issued a red warning for extreme heat, set to come into force from Wednesday, with temperatures potentially reaching 40 degrees Celsius. This poses substantial health risks and further potential for disruption.
The public is urged to stay updated on Met Office warnings and follow safety advice regarding both the lingering storm effects and the impending extreme heat.