'Twister,' 'Twisters' and the actual practice of storm chasing

A plucky meteorology heroine; a male rival with no shortage of hubris; and some very, very big storms: that's the basic formula behind the new disaster action movie Twisters, which follows storm chasers around Oklahoma amid a tornado outbreak.

It's a standalone sequel to the 1996 film Twister, a box-office hit in its day which also spurred a lot of real-life research into severe storms.

We've since learned a lot about how tornadoes behave, and the technology of storm chasing has improved dramatically.

But behind these summer blockbusters is a mystery that scientists are still trying to solve: why do tornadoes form at all?

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'Twisters' has us spiraling

Twister was one of the biggest disaster movies of the '90s. Now, it's finally got a sequel — one with an all-new cast, state-of-the-art effects, and a whole lot of tornadoes. The new film stars Glen Powell and Daisy Edgar-Jones as rival storm-chasers who have a habit of running into tornadoes while everyone else is fleeing. Twisters was directed by Lee Isaac Chung, who also directed the Oscar-nominated Minari.