Storm Release

The jutsu are techniques that combine Lightning Release and Water Release to create bright beams of electricity that can flow like water. In the manga, Darui is the only known user.

Other media
In Naruto Shippūden 3: Inheritors of the Will of Fire, Hiruko has stolen this kekkei genkai from an unknown shinobi through the use of the Chimera Technique. He uses this nature to create and manipulate dark lightning clouds instead, which are also seen to be able to absorb chakra to become larger and powerful.