Aviation is an excellent topic for the nudniks here to show off what they don't know. What none of you seem to know, is that a category III airport doesn't need visibility. Some of the planes can land themselves. Of course, you don't know this and why blemish your record or total ignorance.
So when I saw someone here blaming the the visibility not being more than 3000 I looked up what I already know.
Don't educated yourselves, but keep talking about things you are ignorant about.