FS&S Thunderbolt 1003 | SWA sound off | full hi-lo 3/18/26 | Sandusky, Michigan

The only Thunderbolt siren in Sandusky at the Sandusky fire department. if you guys want to see this siren do hi-lo, you can go on march 18th, the Michigan statewide siren test,(or tornado awareness month) Credit to ‪@SirensGreatLakes‬ for seeing this siren with me