The severe weather brought on by Hurricane Sandy has forced Exelon Generation to reschedule a siren test originally slated for Nov. 1.
The utility will sound all 96 warning sirens within a 10-mile radius of Three Mile Island in Dauphin County on Nov. 15.
That test will include up to six separate soundings beginning at 8 a.m.
Each test will last for three minutes.
Exelon is conducting the test in cooperation with York, Cumberland, Dauphin, Lancaster and Lebanon counties and the Pennsylvania Emergency Management Agency.
A full three-minute sounding of the sirens is required on an annual basis.
The purpose of the sirens is to notify residents to tune into an Emergency Alert System radio or television station in case of an emergency at TMI or other events that would require a mass notification.