CrazyKia's Comments

It looks like as of 5.1 there are a ton of them in the Kal'ai Ruins. The purple area in Northern Stranglethorn with all the murlocs. It also counted for the achievement immediately

I was reading the comments and saw that some are convinced that killing the elementals at the Circle of Outer Binding does not help. I'm not going to say that it does or does not help, and this could be coincidence, but when I arrived there weren't any Tiny Twisters there. I killed most of the Thundering Exiles then went to go kill a Grasslands Cottontail in the area. I came back and one had spawned.