On Radio Stations Switching Format

Regarding Jerry's earlier post, I recently had a radio station change format on me too. The Washington, DC NPR station that served a repeater in Hagerstown that I could pick up changed formats so that it plays all classical with NPR news at the top of the hour. That's unfortunate, because I like other NPR programming as well.
So, now, I listen to West Virginia Public Radio out of Martinsburg (probably 45 miles south of here). If I travel north, I can pick up the Harrisburg NPR station.
While listening to West Virginia public radio, I learned that -- at least for school closings -- they control the school closings by county rather than by individual district (although I'm suspicious that since they did not mention school districts, that all of the schools may be controlled by the county in West Virginia)