People who have observed a funnel cloud passing overhead have described the sound as similar to buzzing bees or a rushing waterfall-like sound.

BBC: Funnel clouds, twisters, tornados: What are they?

The frames had all tumbled out, and the bees were buzzing around wildly.

NEWYORKER: Stung

Previous studies have found that elephants are not only afraid of ants but also will run away from areas with bees, as soon as they hear them buzzing.

BBC: Ants work with acacia trees to prevent elephant damage