Bristol Airport is closed and all flights are grounded after thunderstorms disrupt airport operations. Multiple outlets report that flash thunderstorms damage or interfere with key airport systems, including ground radar and communications. In particular, the disruptions affect links needed to coordinate with air traffic control, leaving flights unable to depart or operate safely. As a result, passengers remain stranded at the airport while the closure continues. The reports also indicate that the airport issues travel warnings related to the weather conditions and the operational shutdown. Although exact timing and the duration of the closure are not aligned across the sources provided, both describe the same core cause: severe thunderstorms that knock out communication and related infrastructure needed for flight handling. Passengers are therefore advised that services are significantly affected until normal systems and coordination can be restored.