Unusual MET scenario
A few days ago a very low, thick layer of clouds blocked the threshold of runway 25.
JUST the threshold.
All the rest was CAVOK, and we easily made a visual approach on the opposite runway.
The Metar reported a visibility of a few hundred meters, but actually, besides a very little portion of the runway end, it was CAVOK.
My question: LEGALLY SPEAKING, is it OK to land when the official report gives you a visibility BELOW minima under these circumstances? (once again, 9/10 of the rwy fully cavok).