A tornado warning is a severe weather warning product issued by regional offices of weather forecasting agencies throughout the world to alert the public when a tornado has been reported or indicated by weather radar within the parent severe thunderstorm.

Which is worse a tornado watch or warning?

"A watch is issued when conditions are favorable, for example, either for a severe thunderstorm or tornadoes," AccuWeather.com Senior Meteorologist Dan Kottlowski said. "It doesn't mean severe weather is imminent." ... A warning means that either a tornado has been spotted or a radar has picked one up.

Is a tornado warning dangerous?

It means that conditions are ideal for a tornado to form. A watch will not necessarily result in severe weather, AccuWeather explains. ... A warning means that either a tornado has been spotted or a radar has picked one up. If you are in an area with a tornado warning, it's time to act immediately.