Thunderbolt 1000 Siren Test Portage, MI Attack Mode
This 1000 is located on top of the Pfizer plant off Portage Road in Portage, MI. It does attack mode for every monthly test. thanks goes to erik92da for tellin me about this siren. tested every first saturday of the month at 1 pm. video'd from inside the car since it was snowing out. this thunderbolt sounds almost like the Oak Park thunderbolt (in my opinion)
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