Actually, I think the guts of the system is down in the Police office on the other side of the building, in the room with the sign on the door warning anyone who enters to turn off his 2-way radio. Key the radio and the system can go nuts.
I know for certain that there is a detection antenna on the Coliseum. Less logically, there is also one down by the Paddlewheel queue house. I haven't quite figured that one out yet. Lightning is easy to detect, as you can detect it by a broadband burst of static on the AM radio band. Prediction is a little tougher as you have to sense the electrical charge in the air. I believe the system does a little of both.
However they do it, CP operations is pretty good at keeping abreast of the weather situation. A different attitude regarding the safety of steel buildings during lightning strikes might help a little, but in general they do a pretty good job.
--Dave Althoff, Jr.
Slowly beginning a study of N. Tesla...