This application containing the best collection of tornado & tsunami sirens for android devices. Sounds have been selected very carefully to be a good and fun user experience, we hope you will enjoy using the app and listening to tornado & tsunami sirens. Tornado & tsunami sirens, also known as outdoor warning systems, are designed for one purpose: to alert people who are outdoors of potential tornadoes. They are not intended, nor designed, to alert people in houses, businesses or vehicles of possible tornadoes and tsunamies.