No. Vortex is a noun.

There is no antonym for vortex.

The Vortex opened in 1987 and was the first roller coaster in the world with six inversions.

The first hill will lift you 12 stories into the sky. And that's just the beginning. You'll be rocketed along 3,800 feet of track at speeds exceeding 55 miles per hour through two vertical loops, one corkscrew, one boomerang turn, and a 360-degree helix. All in all, Vortex will turn you head-over-heels upside-down a grand total of six times!

Vortex.

In the eye of the vortex