Lee also helped conduct research on thunderclouds and the ionosphere. Also, cold air originating from Canada, warms rapidly over the ocean, forming thunderclouds. Their third single called "Thunderclouds" was released on 8 August 2018. The third single, "Thunderclouds", was released on 9 August 2018. On July 13 a cluster of thunderclouds grouped together to form a low pressure area. Thunderclouds that are capable of producing hailstones are often seen obtaining green coloration. The song serves as the album's fifth single, following "Genius", "Audio", "Thunderclouds", and "Mountains". "Thunderclouds" is a song by pop music supergroup LSD. Thunderclouds were present above the Chernihiv region sky for the duration of the flight.