Melvindale, MI | Federal Signal Thunderbolt 1003 Alert, Test | 7/4/26

Since I didn’t go to any firework shows this year, I figured out a more fun way to spend my 4th of July for the big 250th. Film a Thunderbolt! Cellphone POV:    • Melvindale, MI | Federal Signal Thunderbol...   Other Enthusiasts Present: (none) Devices Used: 1. Canon Powershot SX-70 HS (Primary Angle) 2. iPhone 13 Pro (Secondary Angle) Test Time: 1:00 PM Siren Coords: (42.2792377, -83.1825837) Camera Location Coords (Approximately): (42.2785221, -83.1834276) Jurisdiction & Test Window: Dearborn - First Saturdays at 1:00 PM (All Year Round?) (Yes, this siren is operated under Dearborn’s System) © WindowJug Films 2026 Do not use Audio or Video without permission or for malicious intent. Any unauthorized use of this documentation is prohibited.