Tuesday, October 24, 2017
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Point of Contact

Steven E. Smith
Warning Systems Program Manager


Volunteer Manager Contact

Chris Williams
Volunteer Manager
(614) 794-0213

Franklin County Warning Siren System

Outdoor Siren

The outdoor warning sirens of the Franklin County Warning Siren System constitute one of the largest siren networks in Ohio and the Country. These sirens are sounded when the National Weather Service issues a tornado warning for Franklin County. A tornado warning is an indicator that tornado formation has been spotted via radar or has been detected visually. Sirens will emit an audible tone for three minutes, remain silent for seven minutes, and repeat the cycle as long as the tornado warning is in effect. 

The siren network is tested every Wednesday at noon to ensure functionality. If there is a threat of severe weather, the test is cancelled to avoid confusion. In addition, on the first Wednesday of every month, a test of the siren’s public address system (the voice function) is performed. The public address system may be used to convey messages about emergencies other than tornadoes. 

View a MAP of siren locations and check coverage in your area.  Zoom in for a closer look at your area.  Please keep in mind that coverage shown is approximate. 

What To Do When You Hear The Sirens

Click the links below for a printable informational flier, "What to Do When You Hear the Sirens."

Factsheet Outdoor Warning Sirens - English 

Factsheet Outdoor Warning Sirens - Somali


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