Tornado Sirens Blaring For 40 Minutes Wake O’Fallon Residents Overnight

O’FALLON, MO – Residents woke up Friday morning to a blaring tornado siren even though there was no severe weather.
Viper listeners starting calling the stations request line around 4:40 a.m. saying several tornadoes and severe weather sirens sounds were heard for roughly 40 minutes.
The National Weather Service said they received calls from people in the area that said they were hearing the sirens. The NWS said there was no severe weather in the area and they didn’t issue any warnings. The city of O’Fallon tweeted two hours later “Apparently this was a malfunction”. The city does not control the sirens; they are run by the county`s emergency management office. The cause of the malfunction is unknown.