They use Alert for Tornado Warnings, Attack for Floods and HiLo for Terriorism.Banshee_DUDE wrote:Stillwater, Oklahoma uses wail on their system of 42 FS Modulators.
http://stillwater.org/seccc/tornado.php
Hamilton County,OH uses Alert for Weather Warnings.The tornado siren emits a steady 3 minute tone. The flood signal is a quick high-low siren sound (like a British siren). The Man-Made Disaster sounds a tone that alternates between
According to Douglas County, KS EM officals "Wheter an Alert or Attack signal is activated, take shelter" so I assume under extreme conditions, they might sound the attack signal.