What happens during a tornado warning? Sirens will sound for a three-minute duration in 10-minute intervals ‒ three minutes on, seven minutes off – for as long as the warning is in effect.

If you hear a tornado siren, the first step is to take shelter in a safe location indoors and tune into local media or NOAA weather radio for more information. Skip Navigation.

If you were flustered when tornado sirens blared Sunday night, now is the time to start planning for the next weather event so you’re better prepared. Experts warn that waiting for dangerous … ...