...When you where in Kindergarten , I was a Freshman in High School......any way, I don't recall seeing anything like that , but that doesn't mean there never was in the Topeka Public schools. At one point in time , Topeka was a target city due to Forbes Air Force Base. By the time I started school, 1970, all we had was fire drills and Tornado drills.
I would imagine that the signal(s) where sent via a dedicated phone line or much the same way a signal would have been sent to a siren during the Cold War era.
If there was threatening weather, I do know as a fact that there would be a phone call made from the NWS Topeka office to the Unified School Dist. office where they had the ability to call all the schools at once via telephone.
I petition that everyone who joins the board should have to put there age or year of birth in thier signature...32 here
....53 and not too old to still have fun 8)