| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | tornado siren | Tornado-prone areas | Installed in cities and towns to warn residents of approaching tornadoes. | 1 |
| 2 | tornado sirens | Tornado Alley regions | Regularly tested and used for warning residents of approaching storms | 1 |
| 3 | weather sirens | Tornado Alley region | Regularly used as a warning system for approaching storms, particularly tornadoes | 1 |