If you have a scanner, you should tune to 146.52 MHz to catch the initial emergency services activities. Check your local scanner directory to lookup the ham repeater frequencies for RACES. Add local PD, FD, road crews and ambulance services as you have room. These frequencies will get real busy in a real emergency. Feel free to listen, but avoid playing "looky lou" at the active scenes. You may indavertantly put yourself in harm's way or impede necessary services.
I tried to get involved in ARES/RACES twice in two differnt counties. Both times, I basically got pushed aside by the ruling clique. :(