Public sirens are loud warning devices used to alert communities about emergencies or significant events. They can signal various situations, such as severe weather, natural disasters, or public safety threats. These sirens are often installed in strategic locations to ensure that the sound reaches as many people as possible. Typically, public sirens emit a distinct sound pattern that indicates the type of emergency. For example, a steady tone may signal a tornado warning, while a wailing sound could indicate a fire or hazardous material incident. Communities often conduct regular tests of these sirens to ensure they are functioning properly and that residents recognize the alerts.