The tornado sirens will be activated when the National Weather Service issues a tornado warning within the city limits, issues a severe thunderstorm warning with a tornado watch for Sandy Springs, or when a tornado is spotted or reported by a public safety official within the city. Public safety officials will audibly test the sirens on the first Wednesday of each month between 11 a.m. and noon, as recommended by the Georgia Emergency Management Association, and on the state’s Tornado Awareness Day. Silent tests will occur daily to assure system readiness.