03/05/2026
Siren Test Thursday, March 5
The Martin County Emergency Management Agency, St. Lucie County Public Safety Department and Florida Power & Light will conduct a quarterly testing of the outdoor warning sirens for the St. Lucie Nuclear Power Plant at noon Thursday, March 5.
The test will involve a one-minute sounding of all 91 sirens within the 10-mile St. Lucie plant emergency planning zone. Before and after the sirens sound, a message will be broadcast on the sirens' public address system stating, "This is only a test."
The siren system is tested quarterly to improve public awareness of its function and ensure operability.