My guess is that the centers are the radar sites.
Okay, that’s what I was understanding from Hal’s post and yours.
The centers just seem so large...and there would be most of the buildings right in the center...?
Look, I know these questions are amazingly uninformed. What do I know about weather radar? It’s just that I’ve looked at this map for maybe 4 years now, every day, and there’s never been anything like this before.
I guess turning up the gain, you get some strange effects.
So, ALL the radar sites have their gain turned up high in those cities? I'm going to check the link for all the regions, and see if there's more of this elsewhere.