Originally Posted by
bingofuel
[QUOTE1)] any CAT I precision or Non-Precision Approach where the reported visibility is below the advisory visibility (remember that cloud base is the determining minimum for an approach, not the visibility)
Are you sure? The approach ban is based on visibility.
Whilst the UK determines an approach ban in terms of RVR criteria, the French use cloud structure/base as a determining factor as well. I think Hungary also use it?