CLAYTON, Mo. -- St. Louis County is revising its outdoor warning siren tests.
The St. Louis County Emergency Communications Commission said Tuesday that based on feedback from the public it will reduce the duration of the monthly warning siren test to one minute from three minutes effective with the test on April 1. In the event of an actual tornado, the sirens will sound for a full three minutes.
The commission says the warning system is intended for outdoor notification only and the sirens are not designed to alert people inside of buildings.
The county also announced the installation of two additional sirens last week—in Bridgeton and Kirkwood—bringing the total number of sirens to 199.
The Associated Press contributed to this report.