If you hear a series of short pulse tones, you should listen for either a recorded voice message or a live message to follow.
In the event of severe thunderstorm warnings for Cape Girardeau County or dangerous lightning, the sirens will sound with short pulse tones followed by a recorded message. If possible, tune to the local weather broadcasts when you hear the voice messages.
You also may hear these short pulse tones for other types of emergencies. When warranted, the sirens will sound and will be followed by a public address message. Because these messages are "live," they may be difficult to hear and understand. Listen carefully as the message will be repeated.