Lake Norman’s McGuire Nuclear Station is about to test their entire siren system tomorrow, October 11th starting at 11:50am.
There will be a total of 67 sirens within 10 miles of the nuclear station that will go off for exactly three minutes to make sure each siren works properly.
This full-cycle siren test is required once every quarter in cooperation with emergency officials in Mecklenburg, Gaston, Iredell, Lincoln and Catawba counties.
— Huntersville Fire (@Huntersville_FD) October 10, 2017
Here is a video clip of the siren that went off a few years ago:
The sirens are meant to be a warning signal to all residents in audible range to tune in to their local TV or radio stations for further information or instruction – the sirens are not meant to be an automatic evacuation alarm.