I noticed 3 terms when forecasting a tornado warning
Hook Echo
Tornado Vortex Signature
Bow Echo
Since all three have the potential to actually become a real tornado,
does the SPC/NWS issue a warning on ALL 3 or just one of those
criteria?

Why not issue a warning if ANY of the three are seen?

Also, if one of the three are seen, why not issue a warning for the
county the feature is seen which is about to enter a county?

Like if it is in Adams County right now but headed toward James
county. Go ahead and issue one for James county also, just to be on
the safe side? Some tornadoes last longer or even reform so why not be
on the safe side?

I realize this may cause some false alarms, but if people want to be
silly that is not my problem because I would to each warning
seriously.

Please, educate me on some of this if you can.

Or direct me to an appropriate newsgroup or forum on the net.
thanks,
bob