Downtown Outdoor Voice Message Warning Siren Test on Friday, May 27 Friday, May 27, 2022 | Views: 3312 | Categories: Fire Department Press Releases Downtown Outdoor Voice Message Warning Siren Test on Friday, May 27 The Lee's Summit Fire Department will be testing the voice messaging capability of a new Outdoor Warning Siren behind Fire Headquarters on Friday, May 27, 2022, around Noon. The new siren provides coverage for the downtown area and is capable of live and prerecorded voice messages in addition to the traditional storm siren.