turns wind into wind spear

Accelerator lifted his hands above his head like he was trying to grab the invisible moon.
With a roar, the flow of the wind started to swirl around.
The look on the other boy’s face changed, but it was too late. A large atmospheric swirl
that looked like a hole had opened in the earth had taken a spherical form above
Accelerator’s head. Gravel in the area was swept up with it and that giant swirl of
destruction with a radius of a few dozen meters gave its joyous birth cry.
Accelerator laughed and yelled “kill”.
That sphere of destruction created from the world’s atmosphere sliced through the air.
It became a spear of wind flying at 120 m/s. At that speed, wind could easily lift up a car.
That spear of wind very easily blew away the boy like he had been struck by the hand of
an invisible giant.

The wind died, sound died, and the atmosphere died.
Accelerator looked out over the disaster he had created. The gravel covering the ground
in the switchyard had been swept up in the wind leaving the earthen ground visible in
places. The boy was blown away twenty meters where his back struck the pole to a
broken wind turbine. He then slid down to the ground. Falling to the gravel would
probably have been a better outcome for him, but either way his fate was the same.
Hitting something at 120 m/s was not much different from getting into a car accident
without hitting the brakes.
Kamijou lay unmoving on the ground below the turbine with his arms and legs sprawled
out. It was unclear whether he was alive or not.
“...Hm.”
Accelerator had only just thought up that method and it had caused more destruction
than he had imagined.

- Toaru Majutsu no Index Volume 3, Chapter 4 Parts 6-7