Is a tornado warning more severe or a tornado watch?
They are both important but more severe would be a tornado warning. A watch means that conditions are favorable for the development of tornadoes meaning you should be watching the weather, prepare a place to go, and watch the skies, local media, and on what ever you monitor the weather with online. I use the NWS but some people use local media and others use it all. Also, make sure that you have a NOAA weather radio to alert you if something happens