cyclonic

adj

1. Of, pertaining to, or resembling a cyclone.

   “1894, Ivan Dexter, Talmud: A Strange Narrative of Central Australia, published in serial form in Port Adelaide News and Lefevre's Peninsula Advertiser (SA), Chapter I, http://gutenberg.net.au/ebooks16/1600641.txt The wind was blowing in cyclonic fashion, but not a drop of rain fell.”

   “An extreme version of vorticity is a vortex. The vortex is a spinning, cyclonic mass of fluid, which can be observed in the rotation of water going down a drain, as well as in smoke rings, tornados and hurricanes.”

2. Rotating in the same direction as the Earth i.e. anticlockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.