Within Clay Center city limits, four tornado sirens are located throughout the town – one for each direction. The county further maintains sirens in Wakefield, at Clay County Park, Longford, Morganville, Green, and Clifton.  Running off radio waves, the sirens are tested weekly between March and November to ensure they are working as they should. However, if there is a threat of inclement weather, the sirens are not deployed to avoid confusion. 
Source: KCLY Radio