Rhythmic thunder? (Hail cannons)
Written on April 1, 2007 – 11:37 pm | by Ed Warkentin
Recently, we heard what sounded like very strange thunder during a rainstorm.
It didn’t sound like ordinary thunder because it was so rhythmic. After reading this article and hearing this story on NPR, I discovered several things:
- It wasn’t thunder. It was a “hail cannon”.
- The “peals” likely were about 4 seconds apart.
- The idea is to shoot up a very loud boom of sound into the storm clouds when they are passing over to prevent hail from forming. This is done so that crops aren’t damaged.
- This is quite new, and not proven scientifically, but with the unpredictability of the weather, it’s going to be very hard to say conclusively whether it works or not.

Tags: Science