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Photo by Tanja Pigott

Nuclear siren testing scheduled for Oct. 7 around Brunswick Nuclear Plant

*This is a Duke Energy notice. Brunswick County is not responsible for the accuracy of this information. For the most up-to-date information, visit the Duke Energy website or contact Duke Energy directly.

  • Full-volume, three-minute test planned between 10 a.m. and 11 a.m. 
  • No public action required

SOUTHPORT, N.C. – Duke Energy and county officials will test the outdoor warning sirens around the Brunswick Nuclear Plant between 10 a.m. and 11 a.m. on Wednesday, Oct. 7, 2026.

Why it matters: To ensure they are functioning properly, sirens will sound for three minutes. Anyone who hears a siren during scheduled testing does not need to take action.

  • During testing, some sirens may be tested more than once. Follow-up testing after siren maintenance may be required after 11 a.m.
  • Because this is a test, local broadcasting stations will not interrupt regular programming to broadcast Emergency Alert System (EAS) messages. If there was a real emergency requiring the sirens to be sounded, local radio and television stations would broadcast information to the public.