"Michael 182"
You wouldn't from the scope, but there are plenty of days when the
conditions are well known. Do you mean you have no idea what the cloud
conditions are as a controller? Not such that you can decide if he is
violating VFR, but enough to know, at least in your own head, that there
is
no way this guy is VMC...

Actually, I'm thinking the other way around. Seems like that are a lot of
days where you might 'know' the guy violated VFR to get there and to get
where ever he's going. But unless you are in it and close by, you really
don't know if the guy might be VMC or IMC at a given momeent.

Scary any way you look at it.