When you are 14 Nm out and asking port au prince tower if they are experiencing heavy rain in vicinity. They surely afirm no, but I still had to land my helo at about 9Nm away as vis was maybe 150 yards, ceiling 30yards and had so much water into my pitot static' system that no instrument was working anymore...
that was a heavy rain I am sure now! And maybe what they meant while saying no rain...