I remember at EGCC a few years ago RW23R, which was the arrival runway, suddenly became unavailable for a reason I don't remember. What I do remember is the Radar Director advising his traffic to 'expect to go around at not below altitude 3000 feet', or words to that effect. It was quite interesting to watch a short sequence of inbounds fly by before receiving vectors for another attempt. They all made it second time.
It was summer and there were thunderstorms about so perhaps an unexpected surface inspection was needed after a downpour.