What type of warning systems are in place with tornadoes?

The most advanced tornado warning system belongs to the U.S. Doppler radar scans the wind an rain inside thunderstorms, which allows meteorologists to see if there is rotation in a storm which can produce a tornado. Weather spotters, firefighters, and police can report sightings of rotation in the clouds, funnel clouds, and tornadoes that touch down. If a tornado is spotted or is likely to form soon, then a tornado warning is issued. The warning will be broadcast over TV, radio, the internet, and smartphone apps. In some towns loud sirens will sound if a tornado warning is issued.