Verified answer

I experienced Brood X just north of Columbus, OH on June 4th, 2004. So that was far enough from Lake Erie that the ground warming was pretty natural (the lakes can tend to keep temperatures on land around them a lot lower for a month or so).

As to what to expect, If you are familiar with one Cicadas loud song with its build, peak and decline, thousands of them doing it seemingly non-stop creates a surround-sound that can't be missed.

I saw soil thet seemed to be "bubbling" like hot water around the trunk of one tree with cicadas just swarming slowly out of it. The lower trunk had hundreds of the cute little blue guys with big red eyes crawling as fast as they could up the tree.

It was the first time I had seen it (and I'm 42) and I'm thinking about driving to Chicago in two weeks to find an emergence spot.

Remember this doesn't happen everywhere in the projected areas. You'll have to keep track of people's sightings. But if it happens in your back yard, you are in for one big bug-fest!

And expect a lot of birds, squirells, etc. - The Cidada is a protein fest and not poisionous. So if your dog or cat join in, they are 100% edible.

Have fun!

6 days after the ground temperature reaches 64 degrees F. That is projected to be May 24th I think, so May 30th