WATCH is the lower alert (conditions ripe).
Mari posted they were under WARNING. This means at least one tornado-like formation has already been seen or detected somehow.
Currently the area where I used to live and where my friends still live is under tornado WARNING.
I grew up with these things and I guess the watches and warnings would come and go so I am a bit desensitized to it. I am a little more sensitized now after seeing footage of the massive thing that whipped down on OK. I just about fell over backwards when I saw that thing. I could not believe my eyes.
waves