AUSTIN, Texas -- On May 4, Spectrum News meteorologist Adam Krueger marked 98 years since twin tornadoes ripped through Austin, Texas, claiming 13 lives, injuring dozens more people and causing massive property damage. It was the most damaging tornado event in the city's history. 

On Thursday, May 4, 1922, a funnel cloud separated into two tornadoes, one of which is believed to have been an F2, and the other one a possible F4.

The tornado believed to be an F2 hit the campus of University of Texas at Austin, removing roofs from some buildings and thoroughly destroying others.

The tornado believed to have been an F4 caused destruction at St. Edward’s University and elsewhere. 

Interestingly, when Krueger posted the tornado video to social media, people were just as interested in how he pulled off a weather map on his lawn. They were also curios about how he maintains such a green lawn. He followed the original video up with an explanation for both.

And that’s all it took: a green yard, an app, an assistant, and a little ingenuity.