Metro Nashville completes tornado warning system upgrades

Metro Nashville tornado sirens
Metro Nashville has installed 20 new tornado sirens throughout the county. (Courtesy Adobe Stock)

Metro Nashville has installed 20 new tornado sirens throughout the county. (Courtesy Adobe Stock)

Metro Nashville has upgraded the county’s tornado warning system to set off sirens only in areas where warnings are issued, according to a news release from the Metro Nashville Office of Emergency Management.

The $1.9 million project, which began in September, provides polygonal alerts, which allow sirens to sound alarms only in areas covered by tornado warnings, according to the release. As tornado-warned storms move through the county, new sirens will sound as additional warnings are issued.


OEM officials said the current system, which was last upgraded in 2013, serves as a “blanket,” meaning that all 93 sirens sound when the National Weather Service issues a tornado warning anywhere in the county.

In late April, the OEM began installing sirens at 20 new sites across the county. These sites have expanded the system’s existing footprint into more rural areas of the county and bring the city's total number of sirens to 113.


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