After Bill Paxton died in 2017, Spotter Network choreographed 200 storm chasers to spell out "BP" with their GPS tracker blips on a radar display to honor him. This kind of tribute had only been done five times before, and it was the first time it had been done for someone who wasn't a storm chaser.
With a very loud and bass-heavy surround channel, this film was notorious for destroying surround speakers in theatres worldwide.
A recording of a camel's moan was slowed down and used as the sound of the tornado.
Filming in Oklahoma was briefly delayed due to the bombing of the Alfred P. Murrah Federal Building in Oklahoma City on April 19, 1995. Many of the crew went to the site to help with recovery efforts.
The production bought eight blocks of houses in the old downtown area of the real town of Wakita, Oklahoma, for $7,000 to $10,000 per house. These houses and an additional 30 homes built by the production were subsequently demolished by the film's crew for the scenes after the twister passes. The town later rebuilt the downtown area, and also kept the new fire truck used in the film.