Ms. Hunt is a member of a team of young, risk-taking scientists who get high on chasing tornadoes, the more powerful the better.

Mr. Corso chases tornadoes as well as lightning.

I was keener on chasing tornadoes: they can form within minutes and take those in their way by surprise.

After days of chasing tornadoes, a tornado was chasing them.

From 2 P.M. until after midnight, they chased supercell thunderstorms and tornadoes across the state.

We're chasing tornadoes out here!

Chasing tornadoes until two in the morning had been pretty bad, but not half so bad as Alex had feared.

You're chasing tornadoes in a wasteland!

For Mr. Parent, whose idea of the perfect vacation is chasing tornadoes, the personal best is 131.

Charles Edwards has been chasing tornadoes in Oklahoma ever since he studied meteorology in college.